Answer:
8,146 x 121
Step-by-step explanation:
This is a problem in which you need to measure your understading of "orders of magnitude."
If the estimated answer is
that means that we are looking at a multiplication in the "order of" 
You need to look at the "orders of magnitude" of the things you're multiplying. In the first case, we have
that would be "of the order of"
times
. So the whole multiplication would "of the order of"
or near 
The correct answer, 8,146 x 121, is because it's "of the order of"
times
and the gives us the
we need.
3/(5/4) = x/1
x = 12/5 = 2.4 Problems/h
Answer:
$7.50
Step-by-step explanation:
3/4 of the original price
Original price: $10
So we need 3/4 of $10
10 ÷ 4 = 2.5
2.5(3) = 7.5
3/4 of $10 = 7.5, so the price is now $7.50
Answer:
Solving for x, the answer is x = 1 - y/3
Hope this helps :D
If the question is 5m^2 the answer is 80. And if the question is 5m2 then it is 40