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3 years ago

. An Olympic runner completed a 100-meter race with a time of 12.5 seconds. What was her average speed?

Mathematics

1 answer:

svet-max [94.6K]3 years ago

5 0

So you would do 100 divided by 12.5 and that equals 8. So the answer would be 8mph

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A bike shop rents each of its mountain bikes for a one time $4.00 insurance charge plus $2.50 per hour create an equation that r

egoroff_w [7]

Answer:

$y=2.50x+4.00$

Step-by-step explanation:

Let

x -----> the number of hours

y ----> the total cost to rent a bike in dollars

we know that

The equation of the line in slope intercept form is equal to

$y=mx+b$

where

m is the slope or the unit rate of the linear equation

b is the y-intercept or the initial value

In this problem we have

The unit rate or slope is equal to

$m=\$2.50\ per\ hour$

The y-intercept (value of y when the value of x is equal to zero) is equal to

$b=\$4.00$ ----> (fee charge)

substitute the values

$y=2.50x+4.00$

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4 years ago

36-9 divided [(0.24*5)+ (0.66*5)]

Ray Of Light [21]

[(0.24*5)+ (0.66*5)] == 4.50
0.24x5 = 1.20
0.66x5 = 3.30
+ ____
4.50

27.00÷4.5 = 0.166666667

4 0

3 years ago

A number x decreased by 3 is 5

zysi [14]

Answer:

Step-by-step explanation:

x - 3 = 5

x = 5 + 3

x = 8

Therefore, the number is 8.

5 0

3 years ago

Write the equation of a line that goes through the points (-7,9) and (-4,3).

solong [7]

Answer:

y= -2x - 5

Step-by-step explanation:

You have use to slope intercept and formula to get the answer.

3 0

3 years ago

What is the constant of proportionality for m=32•g

lina2011 [118]

Answer:

∴ Constant of Proportionality is 32

Step-by-step explanation:

Here Given;

$m=32\times g$ (equation-1)

$\frac{m}{g}=32$ (equation-2) (divide with 'g' on both side)

We know,

The Constant of Proportionality equation is given;

$y=k\times x$ (equation-3)

Where 'k' is known as Constant of Proportionality.

Comparing equation-1 and equation-3;

$y=m$ and $x=g$

Now equation-2 become;

$k=\frac{y}{x}$

Plug $y=m$ and $x=g$ in above equation;

$\frac{m}{g}=k$ (equation-4)

By comparing equation-2 and equation-4;

$k=32$

So Constant of Proportionality is 32

6 0

3 years ago