Answers
Answer:
-9
Step-by-step explanation:
x + 109 + x + 89 = 180° because these angles are supplementary
2x + 198 = 180 subtract 198 from both sides
2x = - 18 divide by 2
x = -9
Related Questions
please help me with this thank you
Answers
Jane will save more than Mariah.
A town’s population of children increased from 376 to 421 during the past year.
Which equation shows how to find the percent increase?
A. p=421−376
376
B. p=421−376
421
C. p=376
421−376
D. p=376+421
376
Answers
Answer: The answer is A
PLEASE I BEG YOU JUST EXPLAIN HOW TO GET THE ANSWER ALL YOU HAVE TO DO IS EXPLAIN
Answers
Answer:
yo mamma
Step-by-step explanation:
get noob
answer:
4.5 tsp
explanation:
ok so 10 raspberry muffins need 1 1/4 tsp of baking powder so we can represent it like this:
10:1 1/4
then it asks how many tsp of baking powder is needed to make 3 dozens or 36 muffins
the amount of baking powder=x
so,
10:1 1/4=36:x
then you cross multiply,
10x=1 1/4*36
10x=45
x=4.5
Here are the last 3 can u help me
Answers
Answer:
13. B
14. non-proportional
15. y = 4x+35
Justin reads
5/8 chapters in 4/5
hours.
What is the unit rate in chapters per hour?
Write your answer in simplest form.
20 points to person
Answers
The unit rate in chapters per hour is 1/2.
What is multiplication?In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
here, we have,
Justin reads 5/8 chapters in 4/5 hours.
the unit rate in chapters per hour is = 5/8÷4/5
=5/8×4/5
=1/2
Hence, the unit rate in chapters per hour is 1/2.
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Terry bought 2 1/2 dozen chocolate chip cookies. She paid $15 for her purchase. If there are 12 cookies in each dozen, what is the cost per cookie?
Answers
Answer:
you have to divide 12 by 15
Step-by-step explanation:
Give the formula for finding the 'nth term' for this specific arithmetic sequence: 5, 8, 11, 14... (Be sure to fill in numbers for A(1) and d)
Answers
9514 1404 393
Answer:
A(n) = 5 +3(n -1)
Step-by-step explanation:
The first term is ...
A(1) = 5
The common difference is ...
d = 8 - 5 = 3
Then the desired formula is ...
A(n) = A(1) +d(n -1)
A(n) = 5 +3(n -1)
Select the word or number that correctly completes each sentence.
When simplified completely, the product of a monomial and a monomial is
a monomial.
When simplified completely, the product of a monomial and a binomial is
a trinomial.
When simplified completely, the product of a binomial and a binomial is
a monomial.
Before being simplified completely, the product of a binomial and a trinomial has
terms.
what is the answer to the questions?
Answers
1. always
2. never
3. never
4. 6
When simplified completely, the product of a monomial and a monomial will be a monomial. Then the correct option is A.
What is a polynomial?A polynomial expression is an algebraic expression with variables and coefficients. Unknown variables are what they're termed. We can use addition, subtraction, and other mathematical operations. However, a variable is not divisible.
Let's check all the options, then we have
A. When simplified completely, the product of a monomial and a monomial is a monomial.
⇒ a × b
⇒ ab
B. When simplified completely, the product of a monomial and a binomial is a trinomial.
⇒ (a)(b + c)
⇒ ab + ac
C. When simplified completely, the product of a binomial and a binomial is a monomial.
⇒ (a + b)(c + d)
⇒ ac + ad + bc + bd
D. Before being simplified completely, the product of a binomial and a trinomial has terms.
⇒ (a + b)(c + d + e)
⇒ ac + ad + ae + bc + bd be
When simplified completely, the product of a monomial and a monomial will be a monomial. Then the correct option is A.
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Terry increased the size of his rectangular garden this summer. He increased to length by 50% and the width by 20% by what percentage has his garden changed with these changes?
Answers
Given :
Terry increased the size of his rectangular garden this summer. He increased to length by 50% and the width by 20%.
To Find :
By what percentage has his garden changed with these changes.
Solution :
Let, initial length and breadth is x and y.
So, initial area = xy .
Size after increasing them :
y' = y + 0.50y
y' = 1.5y
x' = x + 0.2x
x' = 1.2x
Final area = (1.5y)(1.2x) = 1.8xy
So, percentage increase is :
[tex]= \dfrac{new-original}{original }\times 100\%\\\\= \dfrac{1.8xy -xy}{xy }\times 100\\\\=80 \%[/tex]
Therefore, percentage increase in are is 80%.
Hence, this is the required solution.
World's Finest Coffee (Decaf) is sold by the case where one case contains 48 6-ounce packages. A restaurant uses 36 pounds of this coffee each month. How many cases must be ordered per month?
Answers
Answer:
The number of cases to be purchased is 2.
Step-by-step explanation:
Giving the following information:
World's Finest Coffee (Decaf) is sold by the case where one case contains 48 6-ounce packages.
First, we need to calculate how many pounds are in each case.
1 pound = 16 ounces
1 case= (48*6)/16
1 case= 18 pounds
Now, the number of cases required each month:
36 pounds = 18*x
x= number of cases
x= 36/18
x= 2
The number of cases to be purchased is 2.
simplify the expression: 8x + 13 - 3x + 9=
Answers
Answer:
5x + 22=
Step-by-step explanation:
8x+13-3x+9
Combine like terms.
8x-3x=5x
13+9=22
Piece it back together.
5x+22
And there you have it. Hope it helps! :3
f(g(4)) and the g(f(3)) for the following problem:
f(x) = 2x+3 and g(x) = x-3/2
Answers
First do the inside function then use the answer for the outer function
NEED HELP ASAP
Given: (DE) is a midsegment of triangle ABC.
Find the value of x and y.
What is the length of (AC)?
Answers
Answer:
X=13. y=5 AC=20
Step-by-step explanation:
To do this we first have to find the value of x... giving the fact that DE is a mid segment, We know that the length of BC is double the length of DE this means that the length of BC equals 16. So, to equal 16 x will have to equal 13 so 13 + 3 = 16. Now we will find the value of y. We do this by looking at the length of ae and ec. AE equals EC so now that we know x equals 13 we can do 13 minus 3 equals 10 for AE. since EC has to equal 10 we can do 10 minus 5 which equals 5. We now know that y equals 5. We can now add this all up to find the length of AC. We would do 10 + 10 = 20. Hope this helps!
The length of AC from the diagram is 25
To get the value of x and y, we will use the similarity theorem of a triangle
BC = 2DE
x + 3 = 2(8)
x + 3 = 16
x = 16 - 3
x = 13
Hence BC = 16
From the given figure;
AE/DE = AC/BC
x-3/8 = (x-3+y+5)/x+3
10/8 = 15+y/13
130 = 8(15+y)
130 = 120 + y
y = 10
Get the length of AC
AC = 13-3+10+5
AC = 25
Hence the length of AC from the diagram is 25
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Diego is thinking of two positive numbers. He says, "If we triple the first number and double the second number, the sum is 34." a. Write an equation that represents this clue. Then, find two possible pairs of numbers Diego could be thinking of. b. Diego then says, "If we take half of the first number and double the second, the sum is 14." Write an equation that could represent this description. c. What is Diego's two numbers? Explain or show how you know. A coordinate plane is given here, in case helpful.
Answers
Answer:
x = 8
y = 5
Step-by-step explanation:
Let
x and y = the two positive numbers
a. 3x + 2y = 34 (1)
b. 1/2x + 2y = 14 (2)
Solve the simultaneous equation
3x + 2y = 34 (1)
1/2x + 2y = 14 (2)
Subtract (2) from (1)
3x - 1/2x = 34 - 14
6x-x/2 = 20
5/2x = 20
x = 20 ÷ 5/2
= 20 × 2/5
= 40/5
= 8
x = 8
Substitute x = 8 into (1)
3x + 2y = 34 (1)
3(8) + 2y = 34
24 + 2y = 34
2y = 34 - 24
2y = 10
y = 10 / 2
= 5
y = 5
Diego's two numbers are 8 and 5 respectively
Hate my teacher for this one smh....
Is there enough information to prove the two triangles congruent? If yes, write the congruence statement and name the postulate you would use. If no, write not possible and tell what other information you would need.
Answers
Answer:
Step-by-step explanation:
yes, both are congruent by SAS Postulate
<SQP=<SQR (common in both (construction))
QS=QS (common side in both angle)
QP=QR ( as given)
hence, QPS=QRS
by SAS postulate
By SAS postulate Δ QSP ≅ Δ QSR.
What is Congruence Rule?The triangles are said to be congruent when two angles and a non-included side of one triangle match the corresponding angles and sides of another triangle.
When two angles and the included side of one triangle are equal to two angles and the included side of another triangle, two triangles are said to be congruent.
Given:
In Δ QSP and Δ QSR
<SQP=<SQR (common in both (construction))
QS=QS (common side in both angle)
QP=QR ( as given)
So, by SAS postulate Δ QSP ≅ Δ QSR.
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Student Council is sponsoring the next school dance. They plan to order 2 cheese pizzas for every 3 pepperoni pizzas they order. How many total pizzas will they order if they plan to order 36 pepperoni pizzas for the dance?
Answers
Answer: 60 pizzas
Step-by-step explanation:
From the question, we are informed that the student council plan to order 2 cheese pizzas for every 3 pepperoni pizzas they order.
Since 36 pepperoni pizzas are ordered for the dance, the number of cheese pizzas ordered will be:
= 36 × 2/3
= 24 cheese pizzas
The total pizza ordered will now be:
= Cheese pizzas + Pepperoni pizzas
= 24 + 36
= 60 pizzas
Answer:
60
Step-by-step explanation:
60 trust me
Solve x-4<3 graph the solution
Answers
Answer:
x<7
Step-by-step explanation:
move coefficeint and put it on inequality graph
Answer:
it should have an open circle on 7 and an arrow going to the left
Step-by-step explanation:
hope this helps
The birth weights of newborn babies in the United States follow a normal distribution with a mean of 3.4 kg and a standard deviation of 0.6 kg. Researchers interested in studying how children gain weight decide to take random samples of 100 newborn babies and calculate the sample mean birth weight for each sample. Calculate the mean and standard deviation of the sampling distribution
Answers
Answer:
3.4 kg
0.06 kg
Step-by-step explanation:
Given that:
Birthweight follows a normal distribution :
Mean weighf (m) = 3.4 kg
Standard deviation (σ) = 0.6 kg
Sample size (n) = 100 new born babies
calculate the sample mean birth weight for each sample. Calculate the mean and standard deviation of the sampling distribution
The sample mean birth weight = population mean birth weight for a normal distribution according to the central Limit theorem.
Hence, sample mean birth weight = 3.4kg
Standard deviation of sampling distribution = standard error = σ/√n
0.6 / √100
= 0.6 / 10
= 0.06 kg
Using the Central Limit Theorem, it is found that:
The mean is of 3.4 kg.The standard deviation is of 0.06 kg.Central Limit Theorem The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex]. For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.In this problem:
Mean of 3.4 kg, hence [tex]\mu = 3.4[/tex].Standard deviation of 0.6 kg, hence [tex]\sigma = 0.6[/tex].Samples of 100, hence [tex]n = 100, s = \frac{0.6}{\sqrt{100}} = 0.06[/tex]Hence, the mean of the sampling distribution is of 3.4 kg and the standard deviation is of 0.06 kg.
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Mai uses Triangle A and says the slope of this line is `\frac{6}{4}.` Elena uses Triangle B and says no, the slope of this line is `1.5.` Do you agree with either of them? Explain.
Answers
Answer:
I agree with both of them because they are both correct
Step-by-step explanation:
See attachment for complete question;
Slope (m) is calculated using the following formula:
[tex]m = \frac{Rise}{Run}[/tex]
Where
[tex]Rise = Vertical\ Distance[/tex]
[tex]Run = Horizontal\ Distance[/tex]
From the attachment, we have the following:
Triangle A
[tex]Rise = 6\ units[/tex]
[tex]Run = 4\ units[/tex]
So:
[tex]m = \frac{Rise}{Run}[/tex]
[tex]m = \frac{6}{4}[/tex]
In this case, Mai is correct:
Triangle B
[tex]Rise = 1.5\ units[/tex]
[tex]Run = 1\ units[/tex]
So:
[tex]m = \frac{Rise}{Run}[/tex]
[tex]m = \frac{1.5}{1}[/tex]
[tex]m = 1.5[/tex]
In this case, Elena is also correct:
what is the density of 9 cm³ gold cube with 450 g in a mass?
Answers
Answer:
Answer is 50g/cm^3
Step-by-step explanation:
soln,
Volume of the gold cube = 9 cm^3
Mass of the gold cube = 450 g
now,
density= mass/volume
=450 / 9
=50 g/cm^3
{Therefore, the density of the gold cube is 50 g/cm^3.}
Stores open at the craziest hours on Black Friday Some
even open for their big sale on Thanksgiving Read the
conversation below to figure out when coch store opens
and fill in the table with opening times below.
"It boks like we are going to have to start our shopping of ter
our Thanksgiving meal. Our guests are leaving at four pm, right
when Old Navy opens, and Toys R Us opens one hour later
"Okay, but we need to be at Best Buy to get the great deal on
that TV an hour later."
"But what about the cheap tool set at Target? They open at the
some tmeos Best Buy! We can't be in two ploces at once."
"Well, I saw that Lowe's has the same set for even cheaper, and
they open hours AFTER Target does. We will be able to get
some sleep bettre we head there!"
"Okay, two hours of ter Lowe's opens, we will head to Som's
Club and check out their great deals on cameras
"Sounds good. But an hour ofter Sam's opens, we need to be at
Gander Mountain Sports to buy that new jacket I wanti"
DAY OPEN
TIME OPEN
Thanksgiving 4:00 pm
OLD NAVY
GANDER MOUNTAIN SPORTS
TARGET
LOWE'S
5:00 am
TAVE DHE
Answers
Answer:
Happy Thanksgiving, my friends.
Step-by-step explanation:
I will give brainliest!!
Please help
s/-4 = 6
what is the value of s?
Answers
Answer:
s = −24
Step-by-step explanation:
Step 1 : Move the negative sign to the left.
[tex]-\frac{s}{4} =6[/tex]
Step 2 : Multiply both sides by 4.
−s = 6 × 4
Step 3 : Simplify 6 × 4 to 24.
−s = 24
Step 4 : Multiply both sides by −1.
s = −24
How many tickets were sold in 8 hours?
Hours Tickets
(h)
Sold (1)
3.
240
5
400
9
720
Answers
Answer:
560
Step-by-step explanation:
1=160
2=320
3=480
4=640
5=800
6=960
7=1120
8=1280
9=1440
JUST ADD 160 EACH TIME
hope this is what your looking for :)
Can somebody help me with this. Will mark brainliest!
Answers
Answer:
The length of FG is 2.
Step-by-step explanation: B and F are the same point, just reflected, so BC=FG.
Jack bought 500 shares in Glastonbury Goods at $17.85 per share on January 18, 2015. On January 25, 2017, he sold 300 shares after its price had dropped to $15.25 per share. He bought 250 more shares on January 31, 2017 when the price had fallen to $11.90 a share. He sold all of his stock at $18.00 per share on February 5, 2017. How much of a profit/loss did Jack make over the course of his investment? ____________________ profit or loss
Answers
Answer:
$775 profit
Step-by-step explanation:
Here, we want to know how much profit or loss Jack made;
he sold 300 shares at $15.25
Amount lost on this will be;
(17.85-15.25) * 300 = -$780
The number of shares he sold at $18 will be the 250 he bought now, and the 200 left unsold before
So profit now will be;
200(18-17.85) + 250(18-11.9)
= $30 + $1525 = $1555
So he made $1555 and lost $780
The amount of profit made is $1555-$780 = $775
Bella is working on the world record for longest beaded necklace. She has 10,000 glass beads that have a diameter of 0.4 cm. If she strings these beads end to end, how long will her necklace be.
Answers
Answer:
The necklace will be 4,000 cm long
Step-by-step explanation:
Here we want to calculate the length of the necklace
Mathematically, that would just be the product of the beads and the diameter of each bead
Hence, we have
10,000 * 0.4 = 4,000 cm
At the beginning of a snowstorm, Madeline had 11 inches of snow on her lawn. The snow then began to fall at a constant rate of 0.5 inches per hour. Assuming no snow was melting, how much snow would Madeline have on her lawn 5 hours after the snow began to fall? How much snow would Madeline have on her lawn after tt hours of snow falling?
Answers
12. Phillip deposited $450 in an account that earns
5% interest, compounded yearly. If he makes
no further deposits, how much will be in the
account after 2 years?
A. $472.50
B. $491.14
C. $496.13
D. $512.24
Answers
Answer:
b
Step-by-step explanation:
Plssss helpppp ASAPP
will mark BRAINLIEST!!!
Answers
Answer:
4th and 5th option
Step-by-step explanation:
you can easily add eqn 1 and 2 to get rid of the y term for 4th option and get rid of x term by addition as well for the 5th option
this is a topic on simultaneous equation. If you wish to explore more into this topic you can give me a follow on Instagram (learntionary) I'll be posting the notes for this topic and some other tips :)
Answer:
the last two
Step-by-step explanation:
Which of the following expressions is equal to (2g)5?
10 · g · g · g · g · g
2g · 2g · 2g · 2g · 2g
2 · g · g · g · g · g
10g
Answers
Answer:
The answer is choice b.
Step-by-step explanation:
I took a quiz with the exact same question on it. hopefully I'm not too late ! <3
The expression is;
⇒ 2g * 2g * 2g * 2g * 2g
Option 2 is true.
Given that;
The expression is;
⇒ (2g)⁵
We have to find the equivalent expression.
What is Powers of a number?
The powers of a number is express how many time the numbers are repeated.
The expression is;
⇒ (2g)⁵
Since, The power of 2g is five.
Hence, It can be repeat five times as,
(2g)⁵ = 2g * 2g * 2g * 2g * 2g
Hence, The equivalent expression is;
⇒ 2g * 2g * 2g * 2g * 2g
Option 2 is true.
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