Jessica runs 8 2/3 miles in 4/3 of an hour. what is her speed? (rate)

6.5miles per hour ~ 6½ miles per hour

Step-by-step explanation:

First convert the distance Jessica ran from a mixed number to a improper fraction:

8⅔ equals 26/3.

Since this a unit rate problem divide the miles by the time traveled.

26/3 (miles) ÷ ¾ (hour). When you divide a number by a fraction use (Keep-Change-Flip).

26/3 × 4/3 = 26/4 miles/hour.

Convert improper fraction to mixed number by dividing 26 by 4.

= 6.5miles/ hour. or 6½miles/hour

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

answer: hence, function will be

explanation:

since we have given that

cost of a new textbook = $85

according to question, the resale value of a textbook decreases by 25% with each previous owner,

so, our function becomes,

here, y is the total value of the text book after x owners.

hence, function will be