
+ 15 = 64 Subtract 15 from both sides
<span>

= 49 Find the square root of both sides to cancel out the </span>

x + 5 = 7 Subtract 5 from both sides
x = 2<span>
</span>
Answer:
round the numbers to the closest numbers that you can multiply mentally: one method is round all factors to the biggest digit
Answer: the answer is 1/9
Step-by-step explanation:
That would be 60%. Hope I helped : )
Answer:
use: E = P x t
Step-by-step explanation:
E = energy = J
P = power = W
t = time = s