Answer:
Step-by-step explanation:
Surface area = 4*lateral faces + 2*bases
- A = 4*30 + 2*25 = 170 ft²
Answer:
10 : 3
Step-by-step explanation:
Convert one of the measurements so that it is in the same form as the other. (Easiest to convert m to cms so we are not working with decimals)
2.5 m = 2.5 x 100 = 250 cm (since there are 100 cm in a meter)
Therefore, as a ratio:
250 : 75
We can divide both by 5:
50 : 15
We can further divide by 5:
10 : 3
(no further simplifying)
So 2.5 m to 75cm as a ratio is 10 : 3
Step-by-step explanation:
I think is 19 because it say that he spends
3+ x/2 = 10 Given
x/2 = 7 Subtraction property of equality
x = 14 Multiplication property of equality