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3 years ago

At what point does the graph of y=9x cross the y-axis?

1 answer:

3 0

The point at which a line crosses the y-axis is called its y-intercept. It is generally in the form (0, y-int). To find this value, we can plug in 0 for x and then solve for y.

Steps:

y = 9(0)

y = 0

The point at which the graph of y = 9x crosses the y-axis is (0,0).

If there was a mistake somewhere, please do let me know! As I know that the answer I gave above is not on the list of answer choices. I would strongly recommend checking the equation in the original problem once more. :)

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The equation 1.5r+15=2.25r1.5r+15=2.25r represents the number rr of movies you must rent to spend the same amount at each movie

Lelu [443]

1.5r+15=2.25r
Combine like terms: 1.5r+15-1.5r=2.25r-1.5r
15=0.75r
Get the unknown alone: 15/.75=.75/.75r
20=r or r=20 :)

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3 years ago

Jocelyn calculates that see will take 105 minutes to run 7 miles. She runs the distance in 84 minutes. What is Jillian’s percent

VladimirAG [237]

Answer:

$25%$ %

Step-by-step explanation:

Given: Jocelyn calculates that see will take 105 minutes to run 7 miles. She runs the distance in 84 minutes.

To find: Jillian’s percent error

Solution:

Actual time taken by Jocelyn to run 7 miles = 84 minutes

Approximate time taken by Jocelyn to run 7 miles = 105 minutes

Error = $|105-84|=21$ minutes

Percent error = error/(Actual time taken) × (100) = $\frac{21}{84}(100)=25\%$

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3 years ago

R varies directly as s. Find r when s=10 and k=4

nadezda [96]

Step-by-step explanation:

Since, r varies directly as s

$\therefore \: r \: \: \alpha \: \: s \\ \therefore \: r = k s..(1) \: \\ (k = \: constant \: of \: proportionality ) \\ plug \: s = 10 \: and \: k = 4 \: in \: equation \: (1) \\ r = 4 \times 10 \\ \huge \red{ \boxed{ \therefore \: r =40}}$

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3 years ago

Read 2 more answers

e greater roadrunner bird can run 14 miles per hour. at’s 7 times faster than an ostrich can walk. How fast does an ostrich walk

ExtremeBDS [4]

14 / 7 = 2

An ostrich walks 2 miles an hour.

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3 years ago

Two girls had apples for 14 days. They had 512 in total. Each girl had an equal number of apples. How many apples did each girl

frosja888 [35]

You have to divide and 512/14=36 and 8/14 and that simplified is 36 and 4/7.

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4 years ago