X+y=120
x-y=40
x=40+y
40+y+y=120
2y=80
y=40
x=80
Answer:38 t-shirts
Step-by-step explanation:
P=30t-640 main street
p=25t-450 broad street
30t-640=25t-450
30t-25t-640=-450
5t-640+640=-450+640
5t/5=190/5
t=38
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Answer:Hello! I have done some research and foung that Jean-Charles de Borda is one of the 72 people who had their names enscribed on the Effiel Tower. He was a mathematician, physicist, and sailor. Hope this helps!!
Step-by-step explanation:
Volume = length x width x height
Answer:
The average yearly growth o
Explanation:
Given that the tree grew from 18 ft 35 1/2 feet in 3 1/2 years.
The growth within these years is:
35 1/2 - 18
= 35.5 - 18
= 17.5
Now, this averages:
17.5/3.5 (3.5 is the number of years)
= 5
The average is 5 ft per year