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3 years ago

13

Selena rides her bicycle to work. It takes her 15 minutes to go 3 miles. If she continues at the same rate, how long will it tak

e her to go 8 miles?

1 answer:

Paha777 [63]3 years ago

7 0

It would take her 40 minutes because 15 divided by 3 is 5 so 8 times 5 would get 40

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The variables x and y vary inversely If x=5 when y=12, then find the value of x when y=32

Vilka [71]

Answer:

x=15/8

Step-by-step explanation:

Inverse variation is given by

xy = k

Substituting x=5 and y=12

5*12 = k

60 =k

Our original equation is xy = 60

Now let y=32

x*32 = 60

Divide each side by 32

32x/32 = 60/32

Divide top and bottom by 4

x = 15/8

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3 years ago

I think of a number and on adding 13 to it ,I get 40.Write the equation for it ?

Alekssandra [29.7K]

Answer:

x+13=40 and the answer to that is 27

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3 years ago

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On a coordinate grid, AB has an end point B at (24, 16). The midpoint of AB is P(4, -3). What is the y-coordinate of Point A?

inysia [295]

The y-coordinate of point A is -22

Step-by-step explanation:

Given

B = (24,16)

P = (4,-3)

The formula for mid-point of AB will be given by:

$P = (\frac{x_A+x_B}{2} , \frac{y_A+y_B}{2})$

As we already know the y-coordinate of midpoint

We can put the formula's y coordinate equal to the given value

$\frac{y_A+y_B}{2} = -3\\\frac{y_A + 16}{2 } = -3\\y_A+16 = -3 * 2\\y_A +16 = -6\\y_A = -6-16\\y_A = -22$

Hence,

The y-coordinate of point A is -22

Keywords: Mid-point, coordinate geometry

Learn more about coordinate geometry at:

#LearnwithBrainly

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3 years ago

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Contact [7]

Answer:

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Step-by-step explanation:

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What do i do here I dont know

Mrrafil [7]

159mi/3hr = 53 mi/hr. Hope this helps

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3 years ago