Hey there!
21 + 20 = 41
so x + 21
Hope this helps
Have a great day (:
Answer:
72 in
Step-by-step explanation:
We know that 120 in is equal to the sum of the given height expressions.
(9x) +(7x-8) = 120
16x = 128 . . . . . . add 8 and simplify
x = 8 . . . . . . . . . . divide by 16
9x = girl's height = 9·8 = 72 . . . . inches
The height of the girl is 72 inches.
Answer:
2
Step-by-step explanation:
only 4/5 and -4/5 are 4/5 away from 0
Answer:
10
Step-by-step explanation:
Since the product is 120 un. you use 120/12. use 12 not 13 because 12 is the actual height straight through. 120/12 is 10! that's how to get your answer!
Climb up 3 ft per hr and fall down 2 ft per hr
18 = 3h-2h
solve for h
h=18 hr
