Jethro walked at an average speed of 3 miles per hour for 2 hours. randy walked at an average of 4 miles per hour for 3 hours.

which explanation correctly tells how to calculate the total number of miles the two boys walked?

a.
step 1 divide: 3 ÷ 2.
step 2 divide: 4 ÷ 3.
step 3 subtract the two quotients.

b.
step 1 divide: 3 ÷ 2.
step 2 divide: 4 ÷ 3.
step 3 add the two quotients.

c.
step 1 multiply: 3 × 2.
step 2 multiply: 4 × 3.
step 3 add the two products.

d.
step 1 multiply: 3 × 2.
step 2 multiply: 4 × 3.
step 3 subtract the two products.

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

answer: 94

step-by-step explanation: 79+91+92+94+94 = 450 divided by 5 (since there are 5 number that are being added) = 90