Areilla jogs 3 1/8 miles in 5/8 of an hour. express her speed as a unit rate in miles per hour.

5 miles per 1 hour

Step-by-step explanation:

A unit rate is a comparison of a value per 1. This means the denominator of the fraction is 1.

To find it, write a ratio between miles and hours as 3 1/8 miles  per 5/8 hours. To make it a unit rate, divide the two values.

This means the unit rate is 5 miles/ 1 hour.

answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you