Answer:
Equation ----> 2(c - 40)
c = -40
Step-by-step explanation:
2(c - 40)
= (2c) - (80)
= 2c - 80
=
+ 
c = -40
Answer:
160x 5 be a good time to cover the floor of a room stream NY and phone me
Let
be the time it takes for pumps A, B, and C (respectively) to fill 1 tank. Then

Now,

Then

This means

and

Working together, all 3 pumps would operate at a rate of

or 1 tank in 1 hour, so the answer is D.
Answer: b
Step-by-step explanation:
10 x 10= 100
15 x 10= 150
100+150= 250
Answer:
f(x) = 2^(2x+1)
Step-by-step explanation:
2 = 2¹
8 = 2³
32 = 2⁵
128 = 2⁷
1,3,5 and 7 are odd numbers.
Individual numbers in mathematics are represented as 2x + 1.