We want to estimate 151 % of 70. We will start by rounding the percent.
rcl
151 % & ≈ & 150 %Let's find 150 % of 70 to get an estimation. To do so, we can rewrite 150 % of 70 as the sum of 100 % of 70 and 50 % of 70.
rcl
150 %of 70 & = & ( 100 %of 70) + ( 50 %of 70) [0.4em]
& = & ( 100 %* 70) + ( 50 %* 70)
Finally, we will evaluate the expression that we got. Notice that 100 %= 1 and 50 %= 12.
