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2 years ago

A boy rides his bike at a speed of 28 miles per hour. How

Mathematics

1 answer:

sergejj [24]2 years ago

6 0

Answer:

About 4 hours.

Step-by-step explanation:

Let's set up a proportion and cross multiply.

$\frac{28 miles}{1 hour} = \frac{120 miles}{x}$

Cross multiply.

120 = 28x

Divide by 28 on both sides.

= 4.28571428571

Round this to the nearest whole number, which is just 4. The answer is about 4 hours.

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104,185 miles is the area of Colorado

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2 years ago

And check your answers. At the end of the activity, write a brief evaluation of your work.

Rashid [163]

Answer:

<em>16.5 gallons per minute.</em>

Step-by-step explanation:

The given table is:

$\begin{center}\begin{tabular}{ c c } Time(minutes) & Water(gallons) \\ 1 & 16.50 \\ 1.5 & 24.75 \\ 2 & 33 \\\end{tabular}\end{center}$

We are given this linear function in the form of table.

Let 't' be the time and W(t) be the function with which the gallons of water are changing with time.

We can use slope intercept form to find the equation.

$y=mx+c$

Slope of a function:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

$x_2 = 1.5\\x_1 = 1\\y_2 = 24.75\\y_1 = 16.50$

$m=\dfrac{24.75-16.50}{1.5-1}\\\Rightarrow m =16.5$

This slope is the constant of proportionality.

i.e. the rate at which the number of gallons are changing per minute.

So, the answer is <em>16.5 gallons per minute.</em>

8 0

2 years ago

A photograph was enlarge to a width of 15 inches. If the scale factor was 3/2, what was the width of the original photograph?

kati45 [8]

(3/2)W = 15
3W = 30
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2 years ago

8/11 rounded to the nearest hundredth-pls help mee

telo118 [61]

The answer would be 0.72

4 0

2 years ago

Show your work please

Romashka-Z-Leto [24]

Answer:

B 2208cm squared

you follow this formula

A=2(wl+hl+hw)

w means width

l means length

h means height

input the numbers and you got your answer.

Hope this helped ;)

3 0

2 years ago

Read 2 more answers