Large 2.91\times10^5 Write in standard form

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

60 for the first and 130 for the second

step-by-step explanation:

answer: given the scale 3,5 mm to 1 foot: so you know this and you need convert this 150mm to get the right answer.

step-by-step explanation: