1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tatyana61 [14]
3 years ago
13

What are the variables for question 5, problem a, I don't quite understand.

Mathematics
1 answer:
valentinak56 [21]3 years ago
8 0
One variable is the amount of time it takes her to make a plate. The other variable is the amount of time it takes her to make a cup.
You might be interested in
Please help!!<br> Each pair of polygons is similar. Find the value of x.
Simora [160]

Answer in fraction form: x = 55/4

Answer in decimal form: x = 13.75

Both forms are equivalent, but they say it in a slightly different way.

===========================================================

Work Shown:

AC/QY = CD/YW

(x+5)/15 = 5/4

4(x+5) = 15*5

4x+20 = 75

4x = 75-20

4x = 55

x = 55/4

x = 13.75

------------

Explanations:

  • The first step is possible because the polygons are similar. Similar figures have their corresponding sides be in the same proportion or ratio. Note how side AC has the double red angle (at point A) and a single red angle (point C). The side QY has the same idea in the same order. This is why AC corresponds to QY. The ratio AC/QY is the same as CD/YW.
  • In the second step, I plugged in the expressions that the diagram shows. This is the substitution property.
  • On step 3, I cross multiplied. The general format is A/B = C/D cross multiplies to A*D = B*C.
7 0
3 years ago
Read 2 more answers
Math 7 Grade 7. Can anyone help me answer these questions?
zaharov [31]
1. What is the opposite of -2?  2

2. When we add opposites together they will always equal = ? 0

This is also known as what ?
additive inverse 

Adding with integers with SAME signs.

-8 + -3 = -11

-12 + -15 = -27

-3 + -9 + -25 = -37
6 0
2 years ago
. one decimal place
SOVA2 [1]

Answer:

1. 168

2. 70

3. 15

Hope that this helps!

3 0
3 years ago
Read 2 more answers
Mileage tests are conducted for a particular model of automobile. If a 98% confidence interval with a margin of error of 1 mile
Llana [10]

Answer: 37

Step-by-step explanation:

Given : Significance level : \alpha:1-0.98=0.02

Critical value : z_{\alpha/2}=z_{0.01}=2.33

margin of error : E= 1 mile per gallon

Population standard deviation: \sigma=2.6 miles per gallon.

We know that when the population standard deviation is known then the formula to find the sample size is given by  :

n=(\dfrac{z_{\alpha/2}\times \sigma}{E})^2

n=(\dfrac{(2.33)\times 2.6}{1})^2=36.699364\approx37  [Round to the next whole number.]

Hence, the required number of automobiles should be used in the test = 37

7 0
3 years ago
100 POINTS FOR BRAINLIEST! according to the image, whats the answer? Answer wisely for the full 100
stepan [7]

Answer:

Step-by-step explanation:

1. To find the area of a semicircle the formula is

A=\frac{\pi r^2}{2} \\=\frac{\pi 1^2}{2} \\=6.283m^2

The square

A=a^2=2^2=4m^2\\6.283+4=10.283m^2

2. Triangle

A=\frac{ab}{2} \\=\frac{6*2.5}{2} \\=7.5m^2\\7.5*2=15m^2

Rectangle

A=wl=8*13=104m^2

104-15=89m^2

3.

Semicircle

A=\frac{\pi r^2}{2} \\=\frac{\pi 3^2}{2} \\\\=14.137m^2

Square

A=a^2=6^2=36

36-14.137=21.863m^2

3 0
3 years ago
Read 2 more answers
Other questions:
  • Is it possible for eight employees to earn between $300 and $350 while the ninth earns $1250 per week, and the mean to be $430?
    5·1 answer
  • Factor (2x^2+ay)(-ax^2-2y)
    11·1 answer
  • What is the scientific notation of the number 14 100 000
    14·1 answer
  • Urban Community College is planning to offer courses in Finite Math, Applied Calculus, and Computer Methods. Each section of Fin
    5·1 answer
  • A. 205.7 m^3
    13·1 answer
  • It cost sean 3.75 to play 45 songs on an old jukebox. The jukebox only accepts quarters. How many songs can the jukebox play per
    14·1 answer
  • (a + b)³-(a - b)³- 6a²b
    10·2 answers
  • Please help me with this question it is due today! What value of m makes the system show perpendicular lines? Explain.
    14·1 answer
  • Suzie's Plumbing uses a linear model to determine the total cost, in dollars, of a service call.
    7·1 answer
  • A palindromic number is a number that reads the same forwards as it does backwards (example: 282 or 51715). How many 5-digit pal
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!