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3 years ago

How many times must John run around a 1/4 mile track to run 2 1/2 miles?

Mathematics

2 answers:

vaieri [72.5K]3 years ago

7 0

Answer: 10

Step-by-step explanation: 2 and 1/2 divided by 1/4 equals 10 times he must run around the track

KIM [24]3 years ago

4 0

Answer:

10 laps

Step-by-step explanation:

$2\frac{1}{2} / \frac{1}{4}$

Make the fractions of like denominators

$2\frac{2}{4} / \frac{1}{4}$

Put into an improper fraction for simple division

$\frac{10}{4} / \frac{1}{4}$

Denominators cancel out

10 / 1

Simplify

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1. What is the constant of proportionality, k, of Kevin's wage? Greg's? Savannah's?

Gala2k [10]

Answer:

Part a) The constant of proportionality of Kevin's wage is $k=\$8.25\ per\ hour$

Part b) The constant of proportionality of Greg's wage is $k=\$9.00\ per\ hour$

Part c) The constant of proportionality of Savannah's wage is $k=\$9.50\ per\ hour$

Step-by-step explanation:

See the attached figure to better understand the problem

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

To find out the constant of proportionality k , divide the variable y (total earned) by the variable x (number of hours)

Kevin's wage

Take any point from the table

I take the point (2,16.50)

$k=\frac{16.50}{2}=\$8.25\ per\ hour$

Greg's wage

Take any point from the table

I take the point (3,27.00)

$k=\frac{27.00}{3}=\$9.00\ per\ hour$

Savannah's wage

Take any point from the table

I take the point (2,19.00)

$k=\frac{19.00}{2}=\$9.50\ per\ hour$

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DerKrebs [107]

The answer should be '0' because if you multiply anything times '0' it is still '0'.

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If 9 (x) = – 5x2 – 4x + 19 find f (–3)

Sliva [168]

Answer:

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Step-by-step explanation:

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Answer:

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