Answers
Answer:
A
Step-by-step explanation:
Related Questions
Math please help 20 points plus brainly if you can answer each question.
The perimeter of a rectangle is 40 cm. The length is 14 cm.
Let x = width of the rectangle.
Ravi says he can find the width using the equation 2(x + 14) = 40.
Fran says she can find the width using the equation 2x + 28 = 40.
Answer the questions to solve the equations and to compare the steps and solutions.
1. Which of these is the most helpful first step for solving Ravi's equation, 2(x + 14) = 40?
Circle the best answer.
Add 14 to both sides
Subtract 14 from both sides
Divide both sides by 2
Multiply both sides by 2
2. What would your next step be?
Write your answer in the space below.
3. Solve Ravi's equation, 2(x + 14) = 40, to find the width of the rectangle. Show your work.
Write your answer in the space below.
4. Which of these is the most helpful first step for solving Fran's equation, 2x + 28 = 40?
Circle the best answer.
Multiply both sides by 2
Subtract 28 from both sides
Divide both sides by 2
Add 28 to both sides
5. What would your next step be?
Write your answer in the space below.
6. Solve Fran's equation, 2x + 28 = 40, to find the width of the rectangle. Show your work.
Write your answer in the space below.
7. The two equations have different solution steps. Do they have the same solution? Use the distributive property to show why this answer makes sense.
Write your answer in the space below.
Answers
Answer:
number 1 is D
number 2 is distribute 2 into x and 14(multiplying) getting 2x+28=40
then subtract 28 from each side 40-28=12 after just simply divide 2x by its self and into 12 getting 6
number 3 is 12
number 4 is subtract 2 from both side
number 5 is divide
number 6 is 6
I hope this helps have a great day!
Step-by-step explanation:
Find the slope, if it exists, of the line containing the pair of points.
(8,-6) and (3,9)
Answers
Answer:
The slope is -3
Step-by-step explanation:
the equation for finding the slope between two different points is:
M= (y2-y1)/(x2-x1)
Or in other words the change in y over the change in x.
M= (9+6)/(3-8) = 15/-5 = -3.
(sidenote: I added 9 and 6 for the change in y because you cannot subtract a negative number. Instead you have to add it.)
27 divided by (3/4) square
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The answer is 48. Becuase you need to multipluy and also didived the numbers by the quatum number of X.
A video streaming company charges a yearly membership fee of $119. Some movies and episodes not included in the annual subscription cost $2.99 each to download. Write the equation to find the amount it will cost to download m movies in one year?
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answer
the equation is $119 ÷ $2.99
find the slope please help me
Answers
Answer: slope: 3 or 3/1
Step-by-step explanation:
Answer:
slope is 3 I think, I just started learning about this stuff too
Step-by-step explanation:
Choose all the expressions that are equal to 5/9 multiply 8
Answers
Answer:
4.44
Step-by-step explanation:
the real answer is 4.44444444444
w=2xyz solve for y!!!!!!!!
Answers
Answer:
y=w/2xz
Step-by-step explanation:
What is the answer please help
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Answer:
is the number 4
so 13/16 3/16
Step-by-step explanation:
Thirteen less than four times a number is 17
Answers
Answer: 9x
Step-by-step explanation:
Answer:
4x - 13 = 17
Step-by-step explanation:
Please explain how to do it so I can learn it
Answers
Thomas needed a loan to buy a car. He borrowed $24,000 from the bank at a rate of 8.25% simple interest for 36 months. What was the total amount that Thomas had to pay back?
Answers
Answer:
5,940.00
Step-by-step explanation:
Well its was really simple your welcome
please help me
a piece of wire is 28cm in length is cut into two parts, each part bend to make a square. given that area of square is 416m^2. find the perimeter of each square.
Answers
Answer:
25.488 cm and 2.512 cmStep-by-step explanation:
Note: the area of squares is 41 cm² but not 416 m², typo
Let the sides of squares be x and y
Based on given we have equations:
4x + 4y = 28x² + y² = 41Simplify the first equation
4x + 4y = 28x + y = 7x = 7 - ySubstitute x to solve for y:
(7 - y)² + y² = 4149 - 14y + y² + y² = 412y² - 14y + 49 - 41 = 02y² - 14y + 8 = 0y² -7y + 4 =0Solving we get:
y= 6.372 cm or y= 0.628cmThen
x = 0.628 cm or x = 6.372 cmPerimeter of each square is:
4*6.372 = 25.488 cmand
4*0.628 = 2.512 cmWe are performing a one-sample z-test about mean. The sample size is 64, the sample mean 56.7, the sample standard deviation is 30, and the testing mean is 60. What is the value of the test statistic?
Answers
Answer:
-0.880
Step-by-step explanation:
Mean X = 56.7
Sd = 30
N = sample size = 64
Null hypothesis:
H0:u = 60
Alternative hypothesis:
H1:u not equal to 60
This corresponds to a 2 tailed test. So we will have to use a z test with 1 mean, known population and standard deviation
Level of significance = 0.05
Z critical value = 1.96
The test statistic
Z = X - u/sd/√n
= 56.7 - 60/30√64
= -0.880
The test statistic is equal to -0.880
what is the slope of the line shown in graph
A. -2
B. -1
C. 1/-2
D. 1/2
Answers
Answer:
-1/2
Step-by-step explanation:
using rise over run its 1/-2 which is just -1/2
find the three consecutive even numbers which add up to 1524
Answers
Answer: pretty sure 506, 508, 510
Step-by-step explanation:
Answer:
507,508,509
Step-by-step explanation:
3x+3=1524. 3x+3-3=1524
3x=1521. 3x/3=1521/3
x=507 which means the other numbers are 508 and 509
M5+m2+m3=180 whays the rwason
Answers
Answer: 45
Step-by-step explanation: the fub
Please help me! I don't understand this question!
Answers
Answer:
x^2-10
Step-by-step explanation:
the area of whole square is x^2, not shaded area is 5*2=10, so shaded area equals to x^2-10
Michelle is planting flowers in her garden. She wants the ratio of daisies to carnations to be 3 to 2. Michelle wants to plant a total of 30 flowers. How many daisies should she plant?
Answers
Steps:
Divide 30 by 5 because 3+2 is 5
The answer is 6
The proportion for daisy is 3 so multiply 3 by 6 which is 18
For carnations multiply 2 by 6
Answer:
18 Daisies and 12 Carnations
Step-by-step explanation:
The total amount of flowers adds to be 30 therefore the amount of daises plus the amount of carnations should equal 30 (d+c=30). Then your ratio of daises to carnations is 3 to 2. Which means that you are going to have three daisies for every 2 carnations.
CAN SOMEONE PLEASE HELP ME??
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Surface area of 9cm, 10cm, and 15cm
Answers
Answer: The answer is 750 cm
hellllllllllllllllllllllllllp me plzzzzz
Answers
D. 7 miles
Step-by-step explanation:
26.5/4 =6.62
So the best estimate is 7 miles
what is 20ft to 8yd in a fraction in simplest form
Answers
Answer:
5/6
Step-by-step explanation:
Any help please I gladly appreciate it!!!
Answers
Bc 45+30=75
jill bought 14 feet of fabric. the fabric cost $3.25 a foot, including tax. what is the total cost of the fabric?
Answers
Answer:
$45.5
Step-by-step explanation:
3.25 times 14 is 45.5
Answer:
$47.74
Step-by-step explanation:
Sales tax rate: 5%;
Price without tax: $3.25 dollars;
Amount of sales tax ≈ $0.16 dollars;
Price with sales tax ≈ $3.41 dollars;
Detailed calculations below:Amount of sales tax =
Sales tax rate × Price without sales tax =
5% × 3.25 =
5/100 × 3.25 =
0.05 × 3.25 =
0.1625 ≈
0.16;
Price with sales tax =
Price without sales tax + Amount of sales tax =
3.25 + 0.1625 =
3.4125 ≈
3.41;
means that we need to do 3.41 times 14 there your answer
Please answer a and b, I will give brainliest!!!!!
Answers
Answer:
b
Step-by-step explanation:
because it passes the vertical line test and A does not if you look at x = 1 there are 2 points along that point (1,3) (1,-1)
PLEASE HELP WILL MARK BRAINLEIST
Answers
What is the slope of the line that passes through the points (2, -3)and (2,13)?
Write your answer in simplest form.
Answers
Slope = change in y / change in x
Both x values are the same, they are both 2’s. 2-2 = 0
Because the change in x is 0 the slope is undefined.
An undefined slope means the line is a vertical line ( straight up and down with no angle)
Answer:
Slope = change in y / change in x
Both x values are the same, they are both 2’s. 2-2 = 0
Because the change in x is 0 the slope is undefined.
An undefined slope means the line is a vertical line straight up and down with no angle
Step-by-step explanation:
hope this helps =)
How many different triangles ABC can be formed if C=60∘, c=17√3 and a=34?
Answers
Answer:
Jordan, Its been 5 hours, whats the answer?
Step-by-step explanation:
There can be only 1 triangle formed by the given information.
What is triangle?A triangle is a closed, 2-dimensional shape with 3 sides, 3 angles, and 3 vertices. A triangle is also a polygon.
Given that, ABC can be formed if C=60∘, c=17√3 and a=34
Using the sine law for triangle,
A/sina = B/sinb = C/sinc
34/sina = 17√3/sin60°
⇒ sina = 90°
Since, The triangle ABC is a right triangle,
Hence, There can be only 1 triangle formed by the given information.
For more references on triangle, click;
https://brainly.com/question/2773823
#SPJ2
Find mzC.
B
(2x – 12)
(9x – 26)
(4x + 43)
Answers
Answer:
m<C = 119°
Step-by-step explanation:
Create an equation to find the value of x.
(9x - 26)° = (2x - 12)° + (4x + 43)° (exterior angle theorem of a ∆)
Solve for x
9x - 26 = 2x - 12 + 4x + 43
Add like terms
9x - 26 = 6x + 31
9x - 6x = 26 + 31
3x = 57
Divide both sides by 3
x = 19
✔️m<C = 4x + 43
Plug in the value of x
m<C = 4(19) + 43
m<C = 76 + 43
m<C = 119°
A hotel charges $80 for the first night and $70 dollars for each additional night. How long can you stay at the hotel if your budget is $850 dollars?
Answers
Answer:
12 nights.
Step-by-step explanation:
70×11=770
This means that 11 nights will cost $770.
Now we must add $770 + $80 = $850
The $80 will be an extra night.
So all together it will be 12 nights.
Hope this helps, please mark me as brainliest.