The flat screen television has the length of 2x and the width of 3x+2. what is x if the perimeter is 74 inches?

length : 2x

width : 3x+2

Perimeter = 2(l+w)

substitute in knowns

74 = 2(2x+3x+2)

combine like terms

74 = 2(5x+2)

distribute

74 = 10x+4

subtract 4 from each  side

70 = 10x

divide by 10

x=7

Answer x=10

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

i dont know

step-by-step explanation:

umm. i dont know