"31-inch piece of steel is cut into three pieces"
Call the pieces a,b,c
a + b + c = 31
"second piece is twice as long as the first piece"
b = 2a
"third piece is one inch more than seven times the length of the first piece"
c = 1 + 7a
Ok, we have our equations, let's substitute the second and third into the first.
a + 2a + 1 + 7a = 31
10a + 1 = 31
10a = 30
a = 30/10 = 3
b = 2a = 6
c = 1 + 7a = 22
Check: 3 + 6 + 22 = 31, good
Answer: 3 inches, 6 inches, 22 inches
The answer is a) 35
The steps:
180° - 95 ° = 85 °
180 ° - (85 ° + 60 °)=35 °
Answer: 60 cans in each box
Step-by-step explanation:
98+82=180
180/3=60
Since ur using r as a variable the answer is r = 7.
Answere : 25 meters per second i think
Explanation: I’m not sure
