14. Last month, a truck made 3 round trips to Albuquerque and some round trips to Las Vegas, wrte an expression that shows how many miles it traveled in all. Use the variable n to represent the
unknown number of round trips to Las Vegas. Identify and describe the part of the expression that
shows how many miles it traveled to and from Las Vegas.
The pynrossinn
shows how many miles the truck traveleri in all

it is contrapositive

i could not see the question too well so check yourself again too . this is because i want you to get it correct.

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94

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