Answer:
4a^2 - 15b + 9b^2
Step by step explanation:
If his water to cement ratio is 20 to 30, this means that if he uses 20 liters of water, he'd use 30 liters of cement.
The total mixture would then be 20+30=50 liters.
and the water would be 20/50=0.4 or 40% of the total mixture.
Answer:
See Explanation
Step-by-step explanation:
I can't see the shape
Step-by-step explanation:
Scale factor of STUV to S'T'U'V
= Length of T'U' / Length of TU
= 6/12 = 0.5.
Answer:
the answer is (C) 2(1-2x)=x-3
