Answer: They should cross at 6,-1
Step-by-step explanation:
Length = 4x
width = 7x
perimeter is 2length+2width= 352
2(4x)+2(7x) = 352
8x+14x =352
22x = 352
x = 16
then length = 4*16=64
width =7*16=112
Let the distance be D miles
Car A:- D = 2.4R and for Car B:- D = 4(R- 22)
therefore 2.4R = 4(R-22)
4R - 88 = 2.4R
1.6R = 88
R = 55mph Answer
I believe it is C; 4n + 6 = 2n - 9
the product of 4 and a number
> 4n
increased by 6
> 4n + 6
is 9 less than twice a number
> 4n + 6 = 2n - 9