Answer:
7. 1,360 students.
9. 6,802
Step-by-step explanation:
Problem 5 is correct. The answer is 160.
Problem 7.
If 75% of the students do not wear glasses, then 25% of the students do wear glasses since 100% - 75% = 25%.
25% of the students is 340 students.
x is the total number of students.
340/x = 25/100
25x = 340 * 100
25x = 34,000
x = 34,000/25
x = 1,360
Answer: 1,360 students
Problem 9.
You must find 76% of 8,950.
8,950 is 100%. You want 76%. You can use a proportion, or you can simply multiply 76% by 8,950.
<em>Proportion method:</em>
8,950/100 = x/76
100x = 8,950 * 76
100x = 680,200
x = 6,802
Answer: 6,802
<em>Multiplication method:</em>
76% of 8,950 =
= 76% * 8,950
= 0.76 * 8,950
= 6,802
Answer: 6,802
