Answer:
what am i suppose to help with
Step-by-step explanation:
Answer:
6.25 kg cement, 7.5 L water
Step-by-step explanation:
2.5 kg cement / 4 kg sand = x kg cement / 10 kg sand
x = 6.25
3 L water / 4 kg sand = y L water / 10 kg sand
y = 7.5
Answer:
a = 21 or -21
Step-by-step explanation:
Either a/7 = 3 meaning a = 21
<u> OR </u> a/7 = -3 meaning a = -21
I think it is D hope it works