Answer:
4 mph
Step-by-step explanation:
If you divided 32 by 8 you get 4.
What is the distance between (0, 0) and (-7, -3)? Round your answer to the nearest tenth.
Answer:
Distance = -7.6
Step-by-step explanation:
Using Distance Formula, √((x2-x1)^2 + (y2-y1)^2)
√((-7 - 0))^2 + (-3 - 0)^2) = 7.6
Ms. Wilson bought 5 pencils for w dollars. Each pen costs 35 cents more than a pencil.
Enter an algebraic expression for each statement in terms of w in the boxes.
a) The cost, in dollars, of a pen. $
b) The number of pencils that Ms. Wilson can buy with 20 dollars.
Algebraic expression for each statement in terms of w would be:
Each pencil will cost: w/5.
A pen will cost: w/5 + 0.35
Number of pencils 20 dollars will buy = w/5 = 20/5 =4 pencils.
What is an Algebraic Expression?Algebraic expression in mathematics is an expression that is made up of variables, constant, and mathematical symbols, which can be used to represent a statement.
Thus:
Let w represents the price for 5 pencils.
Each pencil will cost: w/5.
A pen will cost: w/5 + 0.35
a. cost in dollars for a pen = w/5 + 0.35
b. Number of pencils 20 dollars will buy = w/5 = 20/5 =4 pencils.
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HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!
what is the mean of 28,34,34,50,54
Answer:
40
Step-by-step explanation:
the mean is 40 because you add all the numbers then divide them by however many numbers there are.
The points (-1, r) and (3, -4) lle on a line with slope - 2. Find the missing coordinate r.
Answer:
r=4
Step-by-step explanation:
Slope=change in y/change in x
r-(-4)/-1-3=-2
r+4=-2*-4
r=4
What is the greatest perfect square that is less than 55
Answer:
[tex]\sqrt{49}[/tex]
Step-by-step explanation:
[tex]\sqrt{49} =7[/tex]
The square root of 49, which is the greatest perfect square that is less than 55.
A perfect square that is the nearest, greater perfect square to [tex]\sqrt{49}[/tex] is [tex]\sqrt{64}[/tex].
There are no other perfect squares in between [tex]\sqrt{49}[/tex] and [tex]\sqrt{64}[/tex] there are only decimals.
Therefore, [tex]\sqrt{49}[/tex] is your answer.
Proof:
[tex]7^{2} =49[/tex]
[tex]8^{2}=64[/tex]
HELP PLEASE:
WORK IS BELOW
Answer:
Diagram not visible!
Step-by-step explanation:
You must ask question again; then, the rightful person may help you.
Good day to you!
A mathematics test has 15 items. In how many ways can a student answer the exam with 9 correct answers and 6 wrong answers?
a. 15
b. 30
c. 90
d. 5,005
Answer:
Surprisingly the answer is 5,005.
Basically this is asking "in how many ways can you choose 9 things from a set of 15 things".
You will need to use the formula found at the top of this page:
https://www.1728.org/combinat.htm
Filling in the formula in which 'r' = 9 and n = '15'
combinations = n! / (r! * (n-r))!
combinations = 15*14*13*12*11*10 * 9! / (9! * 6!)
combinations = 15*14*13*12*11*10 / 6*5*4*3*2*1
combinations = 14 * 13 * 11 * 10 / 4
= 14 * 13 * 11 * 2.5
= 5,005
answer is "d"
Step-by-step explanation:
Help, I’m in 6th grade I need help with this. I got the first one wrong and I can’t worth to lose the second part because it’s gunna mark it on my grades, plus it’s only 9 questions, and u can’t redo it but
Kevin is hiking on a trail that is 1.8 miles long. So far, he has hiked 80% of the total distance.
How many more miles does Kevin have to hike in order to complete the trail? Complete the explanation on how you found your answer.
Kevin has to hike 0.36 more miles in order to complete the trail.
Part 2 out of 2
Since Kevin has hiked 80% of the trail, he has 100% - 80% or ?%
So, 20% of 1.8 = ? × 1.8 = 0.36.
Answer:
Part 1: 4.5
Part 2: 20%, 0.2
Step-by-step explanation:
1. 1.8 = 80% We need to understand this.
So we can do this then:
2. 1.8/8 = 80%/8
3. 0.225 = 1%
4. 0.225 * 20
5. 4.5
(this is part 1 btw)
Part 2!
20% since 100-80 is 20.
20% -> 0.2
HELP! Please? BRAINLiEST!!!!!!!!
Answer:
Subtract 7
Step-by-step explanation:
18 - 7 = 11
15 - 7 = 8
9 - 7 = 2
Hope this helps!
Answer:
subtract 7
Step-by-step explanation:
Ex: 18 to 11
18-7=11
Ex: 15 to 8
15-7=8
Seventy percent of what number is 35?
Seventy percent of fifty (50) is 35
What is the percentage?The percent or percentage of a number is the division of the number with 100.
From the given information, we are being told that 70% of a number is 35.
Let's assume that the unknown number is: (x)It means that:
70% of x = 35
[tex]\mathbf{(\dfrac{70}{100})x = 35}[/tex]
0.7x = 35
Divide both sides by 0.7
x = 35/0.7
x = 50
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what is 6x cubed divided by 2x
Answer: 2
Step by step: I start with a long-division set-up
Looking only at the leading terms, I divide 3x3 by 3x to get x2. This is what I put on top:
x^2 up on top
I multiply this x2 by the 3x + 1 to get 3x3 + 1x2, which I put underneath:
3x^3 + 3x put down underneath the dividend
Then I change the signs, add down, and remember to carry down the "+10x – 3" from the original dividend, giving me a new bottom line of –6x2 + 10x – 3:
(3x^3 – 5x^2 + 10x – 3) – (3x^3 + 1x^2) = –6x^2 + 10x – 3
Dividing the new leading term, –6x2, by the divisor's leading term, 3x, I get –2x, so I put this on top:
(–6x^2) ÷ (3x) = –2x, which goes on top
Then I multiply –2x by 3x + 1 to get –6x2 – 2x, which I put underneath. I change signs, add down, and remember to carry down the "–3 from the dividend:
(–6x^2 + 10x –3) – (–6x^2 – 2x) = 12x – 3, which is my new last line
My new last line is "12x – 3. Dividing the new leading term of 12x by the divisor's leading term of 3x, I get +4, which I put on top. I multiply 4 by 3x + 1 to get 12x + 4. I switch signs and add down. I end up with a remainder of –7:
(12x)/(3x) = 4, 4(3x + 1) = 12x + 4, (12x – 3) – (12x + 4) = –7
This division did not come out even. What am I supposed to do with the remainder?
Think back to when you did long division with plain numbers. Sometimes there would be a remainder; for instance, if you divide 132 by 5:
132 ÷ 5: 2 × 5 = 10; put 2 on top and 10 underneath; 13 – 10 = 3; new divisor is 32; 6 × 5 = 30; put 6 on top and 30 underneath; 32 – 30 = 2; answer is 26 with remainder 2
...there is a remainder of 2. Remember how you handled that? You made a fraction, putting the remainder on top of the divisor, and wrote the answer as "twenty-six and two-fifths":
\dfrac{132}{5} = 26\,\dfrac{2}{5} = 26 + \dfrac{2}{5}
5
132
=26
5
2
=26+
5
2
The first form, without the "plus" in the middle, is how "mixed numbers" are written, but the meaning of the mixed number is actually the form with the addition.
We do the same thing with polynomial division. Since the remainder in this case is –7 and since the divisor is 3x + 1, then I'll turn the remainder into a fraction (the remainder divided by the original divisor), and add this fraction to the polynomial across the top of the division symbol. Then my answer is this:
\mathbf{\color{purple}{\mathit{x}^2 - 2\mathit{x} + 4 + \dfrac{-7}{3\mathit{x} + 1}}}x
2
−2x+4+
3x+1
−7
Answer soon!!!! (60 points)
Answer:
the second one, $63, i think
Step-by-step explanation:
50 POINTS!!!! HELP ASAP!!!
Answer:
18 sales
Step-by-step explanation:
1020-300=720
720/40
=18 sales in that particular week
Answer:
Step-by-step explanation:
Please help me with this math problem!! NO LINKS PLEASE!! Will mark brainliest!! :)
Answer:
2
f(x)= -x + 1
2
g(x) = -x + 6x +5
2
h(x)= +ax + bx -c ( its form should be like that )
In each of the following, solve for X.
Answer:
Solving for X: x = 8
Step-by-step explanation:
Set up as proportion and cross multiply to solve:
12/15 = x/10
x = 8
y = x + 10
y = 8 + 10
y = 18
Need help please 4x + Y = 1
, x + 2y = 9 rewrite equation into slope intercept form (y=mx+b)
Answer:
Given and Explained Below.Step-by-step explanation:
slope intercept form: y = mx + b ............where m is slope and b is y-intercept
1st question:
4x + y = 1
y = 1 - 4x
y = -4x + 1
2nd question:
x + 2y = 9
2y = 9 -x
y = (-x + 9)/2
y = [tex]-\frac{1}{2}x + 4.5[/tex]
Nick was surveying his field and saw some cows and ducks. Nick counted a total of 80 heads and
248 legs. Assuming there are no mutations in the animals, determine exactly how many ducks and
cows he saw. Let X represent the number of ducks and y represent the cows.
Total Equation:
Legs Equation:
How many ducks?
How many cows?
Answer:
y= 43
x= 37
Step-by-step explanation:
Legs: (43 x 4) + (37 x 2) = 248
Heads: 43 + 37 = 80
A 1/2 cup serving of ice cream contains 140 calories. How many calories would be in a 1 1/2 cup serving?
Answer:
420 calories is your answer.
Step-by-step explanation:
If half of it is 140 we know that the other half is 140, so the full thing of ice cream is 380. So 1 cup is 380, and half is 140. 380+140 = 420. So 1 1/2 = 420 calories. Could i get brainliest :D
use multiplcation to solve the proportion. b/65 = 7/13
Answer:
b = 35
Step-by-step explanation:
Use the butterfly method (Cross multiply):
b × 13 = 13b
65 × 7 = 455
So you would have:
13b = 455
Divide both sides by 13.
You will get b = 35
Hope this helps!
Answer: b=35
Step-by-step explanation:
[tex]\frac{b}{65}=\frac{7}{13}[/tex]
Multiply both sides by 65:
[tex]\frac{65b}{65}=\frac{7\cdot \:65}{13}[/tex]
[tex]b=35[/tex]
10x2 − 9y2 is not the difference of two squares.
Identify the correct explanation for this statement.
Answer:
under root 10 will be possible
( 3y )²
Can u help me with this
Answer:
6
Step-by-step explanation:
each tomato=4
7-4=3 so each avocado is 3
5-3=2 so each lime is two
so 4+2=6
Answer:
6
Step-by-step explanation:
Tomato + tomato = 8 ⇒ tomato = 4
Avocado + tomato = 7 ⇒ Avocado = 7 - 4 = 3
Avocado + Lemon = 5 ⇒ Lemon = 5 - 3 = 2
Therefore, Lemon + tomato = 2 + 4 = 6
Solve 4p^2 – p=0.
p=____, p=_____
Answer:
p = 0, p= 1/4
Step-by-step explanation:
factor out the common term p
p(4p - 1) = 0
Really Easy Points!!!
-
Define potential
Potential is what an individual is capable of doing or becoming
Answer:
Having or showing the capacity to develop into something in the future is called potential
PLEASE HELP AND NO LINKS PLEASE
Answer:
x ≤ 4
Step-by-step explanation:
x ≤ 4
A closed circle means ≤ or ≥
An open circle means < or >
As the shaded area is to the left of 4, x ≤ 4
name each indicated part of the algebraic expression 4x + y/3 - 2.3
4:
-2.2:
1/3:
y/3:
Answer:
» 4 → Coefficient of x [slope of a line]
» x → Term of 4
» ⅓ → Coefficient of y
» y → term of ⅓
-2.3 → Constant [y-intercept]
Step-by-step explanation:
Consider equation below:
[tex]{ \bf{ax + by + c}}[/tex]
• a is a coefficient of x-term
• b is a coefficient of y-term
• c is a constant
The indicated part of the algebraic expression 4x + y/3 - 2.3 are
4: Coefficient of x [slope of a line] x: Term of 4 ⅓: Coefficient of yy: term of ⅓-2.3: Constant [y-intercept]What is an algebraic expression?An algebraic expression in mathematics is an expression created using variables, constant algebraic numbers, and algebraic operations.
Given an algebraic expression 4x + y/3 - 2.3
The algebraic equation usually consists of a variable, coefficients, and constants.
the parts of the expression that are connected with addition and subtraction. These parts are called terms. A coefficient is a number that is multiplied by a variable in a mathematical expression. In a mathematical expression, factors are parts of the expression that are connected by multiplicationLearn more about algebraic expression here:
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Bev has to trim her grandma's grass this weekend and wants to know exactly how much area she will be trimming. Calculate the area of the polygon. Be sure to show all your work and explain your answer.
Answer:
150 ft²
Step-by-step explanation:
If you take that triangle and place it on the other side you get a normal rectangle and can just multiply 15 By 10
Explain the 'price effect' for normal 'substitutes' and 'complementary' goods.
Answer:
When the price of a good that complements a good decrease, then the quantity demanded of one increases and the demand for the other increases. When the price of a substitute good decreases, the quantity demanded that good increases, but the demand for the good that it is being substituted for decreases.
i need help, im about to have a meltdown
Answer:
Not sure of the actual quest but
y=-3x+7
slope -3
y=7
x= 7/3
y=6x-2
slope 6
y= -2
x= 1/3
Step-by-step explanation:
[tex]x+2y\leq 10,x+y\leq 3[/tex]