Answer:
x=1, y= 7
Step-by-step explanation:
−5x+2y=9
y=7x
Substitute the second equation in for the first
-5x +2(7x) = 9
-5x + 14x = 9
Combine like terms
9x = 9
Divide by 9
9x/9 = 9/9
x =1
Now find y
y = 7(1)
y =7
Answer:
Because there are 12boys
Step-by-step explanation:
Well you would have them work together which can possibly cut the work time in half. So if you have them both working then it can speed up the process to B. I hope this helped :D
Answer:
September, I’m counting on you to gib dat brainliest
Step-by-step explanation:
Answer:
55w+145
Step-by-step explanation:
(10w+120)+(45w+25)
=10w+120+45w+25
=45w+10w+120+25
=(45w+10w)+(120+25)
=55w+145
