Liza types 180 words in 3 minutes. At that rate, how many minutes does it
take her to type 1,260 words?

Brainliest to a person who gets it right.

21 minutes

Step-by-step explanation:

180 divided by 3 is 60 wpm

1260 divided by 60 is 21

b

step-by-step explanation:

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15