On a map, 1 in represents 420 miles. How much does 3/4 in represent?

315

Step-by-step explanation:

420 x 3/4 = 315

315 miles

Step-by-step explanation:

We can write a ratio to solve

1 inch          3/4 inches

  =

420 miles     x miles

Using cross products

1 * x = 420 * 3/4

x=315

y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40