If x=8 and y=−4, evaluate the following expression:
20-5y+2x
Answer:
the answer will be: 16
Step-by-step explanation:
Why? Because =
20-5y+2x
20 - 5 • 4 + 2 • 8 =
(5 • 4 = 20)
(2 • 8 = 16)
20 - 20 + 16 =
(20 + 16 = 36)
20 - 36 = 16
Never forget PEMDAS
In the area a square is 48 cm^2. What is the perimeter, in cm, of the square?
144 cm
Step-by-step explanation:
Explain how to plot the point (3, -7) on the coordinate plane.
Answer:
Start at the origin to plot the point. The x-coordinate, 3, indicates that you need to move 3 units to the right. The y-coordinate, −7, indicates that you need to move down 7 units. Then plot the point.
Step-by-step explanation:
Answer:
what that person said on top thx man
Step-by-step explanation:
Amanda, Bruno and Carla collected bottle caps for charity. Amanda collected (4f – 3) bottle caps. Bruno collects twice as many bottle caps as Amanda. Carla collects 3(5 + 2f) bottles. How many bottles did they collect altogether in terms of f ?
Answer:
18f - 6 bottles
Step-by-step explanation:
Amanda, Bruno and Carla collected bottle caps for charity. Amanda collected (4f – 3) bottle caps. Bruno collects twice as many bottle caps as Amanda. Carla collects 3(5 + 2f) bottles. How many bottles did they collect altogether in terms of f ?
From the question
Amanda collected (4f – 3) bottle caps. Bruno collects twice as many bottle caps as Amanda.
= 2(4f - 3)
= 8f - 6 bottle caps
Carla collects 3(5 + 2f) bottles.
= 15 + 6f bottles
The number of bottles they collected altogether in terms of f is calculated as:
(4f – 3) bottle + 8f - 6 bottle + 15 + 6f bottle
4f - 3 + 8f - 6 + 15 + 6f
= 18f - 6
can someone help me with this : 4g = 8
Answer:
4g = 8
You would just have to divide 4 on both sides. The 4's would cancel out and now your left with 8÷4 = 2
Your answer would be
g = 2
show that triangle BCD is isosceles
Step-by-step explanation:
∠BAC = ∠BCA because it is an isosceles triangle
∠ADB = ∠ABD = 72° because it is an isosceles triangle
∠BAD = 180° - 72° - 72° = 36° because the sum of all interior angles in a triangle = 180°
∠BDC = 180° - 72° = 108° because it is supplementary to 72°
∠ABC = 180° - 36° - 36° = 108° because the sum of all interior angles in a triangle = 180°
∠DBC = 108° - 72° = 36° (∠ABC - ∠ABD)
since ∠DBC = ∠DCB, ΔBCD is isosceles
Rob has 40 coins, all dimes and quarters, worth $7.60. How many dimes
and how many quarters does he have?
... please solve this using if systems of equations
seen you with ur ex
I need a bit of help with 2 of my homework questions! 1/12 + ( 7/12 + 1/4 ) and ( 3 1/4 + 5/6 ) + 1 1/4
How many significant figures will the answer to the following problem have? You do not have to solve the problem. 8.82 -3.4 =
Answer:
5.42
Step-by-step explanation:
8.82 -3.4 = 5.42
The solution to the problem will have two significant figures.
What are significant figures?The number of digits in a value, generally a measurement, that contributes to the degree of precision of the value is referred to as significant figures. At the first non-zero digit, we begin calculating significant numbers.
The given problem 8.82 -3.4 has two digits after the decimal place. Hence, The solution to the problem will have two significant figures.
Learn more about Significant Figures:
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If PQ = 2v and PS = 6v - 52, find the value of v in parallelogram QRST.
Answer:
Step-by-step explanation:
What is the answer?
Answer: C
Step-by-step explanation:
A train left for Houston, and 5 hours later, a car traveling 74 mph tried catching up to the train. After
8 hours, the car caught up. What was the train's average speed?
Answer:
45.538 mph
Step-by-step explanation:
v = d/t (velocity = distance/time)
74 mph = d/8
d = 592 miles
[tex]v_{train}=\frac{592 miles}{5+8 hours}[/tex]
= 45.538 mph
Two trapeziums are similar, thee area of one of the trapezium is 4times that of the other. Determine the ratio of the perimeter & the corresponding side length of the trapezium
Answer:
The ratio of the perimeters of the two trapezium is 2
The ratio of the corresponding sides of the two trapezium is 2
Step-by-step explanation:
The given parameters in the question are;
Two trapeziums are similar
The area of one trapezium = 4 × The area of the other trapezium
Let, A₁, and A₂ represent the area of the two trapeziums, we have
A₁ = 4 × A₂
∴ A₁/A₂ = 4
Given that ratio of areas = (Ratio of sides)²
Ratio of sides = Ratio of perimeter
∴ Ratio of areas = (Ratio of perimeter)²
Therefore, given that the ratio of the areas of the two trapeziums A₁/A₂ = 4, we have;
Ratio of areas = 4 = (Ratio of sides)²
The ratio of the corresponding sides = √4 = 2
The ratio of the corresponding sides = 2
Ratio of areas = 4 = (Ratio of perimeter)²
The ratio of the perimeter = √4 = 2
The ratio of the perimeter = 2
Answer:
The ratio of the perimeters of the two trapezium is 2
The ratio of the corresponding sides of the two trapezium is 2
Step-by-step explanation:
The given parameters in the question are;
Two trapeziums are similar
The area of one trapezium = 4 × The area of the other trapezium
Let, A₁, and A₂ represent the area of the two trapeziums, we have
A₁ = 4 × A₂
∴ A₁/A₂ = 4
Given that ratio of areas = (Ratio of sides)²
Ratio of sides = Ratio of perimeter
∴ Ratio of areas = (Ratio of perimeter)²
Therefore, given that the ratio of the areas of the two trapeziums A₁/A₂ = 4, we have;
Ratio of areas = 4 = (Ratio of sides)²
The ratio of the corresponding sides = √4 = 2
The ratio of the corresponding sides = 2
Ratio of areas = 4 = (Ratio of perimeter)²
The ratio of the perimeter = √4 = 2
The ratio of the perimeter = 2
A bag contains all the letters in the word MATHEMATICS. You draw two letters, one at a time. What is the probability of drawing a T, replacing it, then drawing a C?
There are 136 students at the dance. 62 of the students are females. What is the ratio of boys to girls at the dance? PLEASE HURRY!!!
The ratio of boys to girls is 74:62
74 represents the boys
62 represents the girls
Lara borrowed $4500 for some home repairs. She will be paying 6% in simple interest over the next three years. What is the total amount she will be paying on the loan
Answer:
5310
Step-by-step explanation:
6% of 4500=270
270x3years=810
4500+810=5310
Lara will be paying the total amount is $5310
What is simple interest?Simple Interest (S.I.) is the method of calculating the interest amount for a particular principal amount of money at some rate of interest.
Given that, Lara borrowed $4500 for some home repairs. She will be paying 6% in simple interest over the next three years.
We need to find the total amount she will be paying on the loan,
So, the formula for simple interest is - SI = PRT / 100
P = principal, r = rate and t = time
Therefore,
SI = 4500 x 6 x 3 / 100
= 45 x 18 = 810
The interest = $810
She will pay = interest + principal = 810 + 4500 = $5310
Hence, Lara will be paying the total amount is $5310
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help please I gotta get my grade up!
First step: you got to add y to both sides in the math problem Ex: 15x - y + y < 12 + y
Second step: simplify 15x < 12 + y
Third Step: This you got to divide both sides by 15 like this: 15x/15 < 12/15 + y/15
Last and Fourth step: Simplify and thats your answer x < 12 + y/15
Can someone please help me graphs this I don’t understand!
Answer:
-8 is the y intercept and 1/2 is the slope
Step-by-step explanation:
Put a point on -8 on the y (vertical) axis
If you provide a picture of the entire graph, I can plot it for you - if that would help
Whats the answer? I dont get it?
(3x)²×-3x³ simplify nd give answer in positive exponets
Answer:
−27x5
Step-by-step explanation:
Answer:
6x^3
Step-by-step explanation:
A 38.3
B 12.4
C 35.6
D 24.1
HELPPPPPPPP TQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ
Answer:
Area = 120
Step-by-step explanation:
Triangle formula:
[tex]\frac{1}{2}[/tex](b x h)
Given:
[tex]\frac{1}{2}[/tex](10 x 24)
Multiply 10 and 24 to get 240.
10 x 24 = 240
Divide 240 and 2 to get 120.
240 ÷ 2 = 120
So answer is 120.
Can the expression be factored
Answer:
Yes, the expression can be factored to give:
[tex]( {x}^{2} + 4)(x + 2)(x - 2).[/tex]
Which expression is equivalent to 6 x p +3
Answer:
3 + (px6)
Step-by-step explanation:
hope this helps
Answer:
3+(p.6)
Step-by-step explanation:
6.
Write a function rule for the table.
A. c = 16d + 18
B. c = 18d + 16
C. c = 16d
D. c = 16d + 16
Answer:
A. c = 16d + 18
Step-by-step explanation:
Solution:
we are given with a data table and we have been asked to find the function rule.
If we closely observe the table then we find that table is following the below function rule
Check for
Check for
Check for
Check for
Hence the correct option is c = 16d + 18
...............................................................................................................................................
maddymcg408
Virtuoso
250 answers
3.8K people helped
Answer:
c = 16d + 18
Step-by-step explanation:
Which of the following sets of numbers could represent the
lengths of the sides of a triangle?
A 2, 2,5
B 3,3,5
C 4,4,8
D 5,5, 15
Answer:
b i think tell me if i am wrong.
Step-by-step explanation:
Dara pinkston Recorded her house and expenses for a month of August mortgage payment was 347.90Insurance $17 Texas $84 electricity $64.40 phone service $33.50 fuel $98.25 water $17.44 in repairs $79.87 .Her monthly take-home pay is 2150 what's her total money coast?
Answer:
the total monthly cost is $742.36
Step-by-step explanation:
The computation of the total monthly cost is shown below:
= Mortgage payment + insurance + taxes + electricity + phone service + fuel + water + repairs
= $347.90 + $17 + $84 + $64.40 + $33.50 + $98.25 + $17.44 + $79.87
= $742.36
hence, the total monthly cost is $742.36
Jarry is making a strawberry smoothie which measure is greatest the amount of milk cottage cheese or strawberry
Answer:
Milk
Step-by-step explanation:
The amount of milk, cottage cheese and strawberries used are given in the attached picture.
3/4 cup of milk
2/6 cup cottage cheese
8/12 cup strawberry
Converting the fractions to decimal :
3/4 cup of milk = 0.75
2/6 cup cottage cheese = 0.3333
8/12 cup strawberry = 0.66666
0.75 > 0.6666 > 0.3333
We can conclude that amount of milk is greatest, then strawberry and the least is cottage cheese.
lolz helppp thank uuuuuu
Answer:
Step-by-step explanation:
Friend runs 32/2=16 miles per week
You run 24/3=12 miles per week
Your friend runs (16-12)=4 more miles than you each week.
Answer:
o
Step-by-step explanation:
1. -30 and 25
2. -34 and -37
3. -15 and 15
Answer:
1. -5
2.-71
3. 0
if you think by this im not sure