Answer:
<u>Question 14:</u>
13 x 100 = 1,300
1,300 ÷ 22 = 59.09
<em>Answer:</em> 59.09%
<u>Question 15:</u>
4 quarters = 1 year
1/4 = 25% of a year
25 x 4 = 100
4/4 = 100% of a year
25 x 7 = 175
7/4 = 175% of a year
<em>Answer: </em>175%
<u>Question 16:</u>
Roger's statement could be correct because the amount of students in a school is usually much greater than the amount of teachers and employees. As you see in the question 27% of the high school students drive to school and 94% of the staff drives to school, so by using critical thinking skills you can see that since there are usually hundreds more students in a school than teachers that the 27% percent could still be a huge amount of students even if it is less than half of the students.
<u>Question 17:</u>
100% of the 120% is the original price so, Stefan is making 20% more than he originally spent.
20% x 114 = 22.8
114 - 22.8 =91.2
20% x 18 = 3.6
18 - 3.6 = 14.4
<em>Answer:</em> The original price for the bicycle was $91.20 and the original price for the helmet was $14.40.
<u>Question 18:</u>
140% x 30 = 42
A proportional equation is written as y = kx.
<em>Answer: </em>42 = 140% x 30
<u>Question 19:</u>
<h3>PART A:</h3>
180% x 50 = 90
7.65 ÷ 90 = 0.085
Take the number 0.085 and move two places back.
8.5
<em>Answer: </em>The sales tax rate is 8.5%.
<h3>PART B:</h3>
180% x 35 = 63
63 x 2 = 126
63 x 3 = 189
63 x 4 = 252
<em>Answer: </em>In order for the total paddle sales to be at least $250 he would have to sell 4 paddles. I got this answer by multiplying 63 by 4 which gave me the outcome of 252.
