Answer:
a = 9
Step-by-step explanation:
you can simplify the proportion to:
use cross- multiplication
8a = 72
a = 9
7.8456 x 10^(-4)
this means you move the decimal place to the left 4 places to get the actual value
<span>A. 54°; acute is the answer</span>
Correct Solution: He read 1.5 pages per minute.
Error Analysis: You should’ve divided 3 by 2 not 300. There are 300 pages in the book total. This information is irrelevant to the question. Cole reads 3 pages in two minutes. So you divide 3 by to to find out how many pages he reads per minute. 3/2=1.5
The answer is 3, just do 20*0.15 (covert 15% into a decimal).