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user100 [1]
3 years ago
7

The length of a rectangle is five times the width.

Mathematics
1 answer:
Nitella [24]3 years ago
6 0
Hi there!

Let's use x for the width because we know the width is only 1. Next, we'll use 5x for the length because the length is 5 times the width. Now, we can set up an equation to solve for x.

WORK:
x * 5x = 1620
5x^2 = 1620
x^2 = 324
x = 18

ANSWER:
The width of the rectangle is 18 centimeters

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
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Read 2 more answers
You are interested in predicting a son's height in inches based on his father's height in inches. The slope of the regression li
Alchen [17]

Answer:

When the father's height increases by 1 inch, the son's height increases by 0,5 inches.

Step-by-step explanation:

We are given the following in the question:

Father's height in inches is independent variable and son's height in inches in the dependent variable.

Slope, m = 0.5

y-intercept = 35

We can write the regression equation as:

y(x)=mx + c

y(x) = 0.5x + 35

where x is father's height in inches and y(x) is the son's height in inches.

Interpretation of slope:

  • Slope represents the rate of change.
  • It states the change in y when the x changes by one unit

y(x+1)-y(x) = 0.5(x+1)+35-0.5x-35\\y(x+1)-y(x) = 0.5

Thus, we can say when the father's height increases by 1 inch, the son's height increases by 0,5 inches.

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3 years ago
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