27) if a = 1/a
multiply both sides by a
a * a = 1/a * a
a^ 2 = 1
Answer is D) 1
28)
6 x 75 = 450
7 x 80 = 560
8 x 85 = 680
9 x 90 = 810
Total all students in class = 6 + 7 + 8 + 9 = 30 students
Total score of whole class:
450 + 560 + 680 + 810 = 2500
Average = 2500 /30 = 83.3 = 83 1/3
Answer is C) 83 1/3
If you do 2,029 divided by 2 you will get the answer: 514.5 which is rounded to 515
Answer: 32 or less uniforms can be purchase.
Step-by-step explanation:
The situation can be described by the inequality 330 + 35x ≤ 1450
Solve for x to find how many uniforms can be purchased.
330 + 35x ≤ 1450
-330 -330
35x ≤ 1120
x ≤ 32
This means 32 or less uniforms can be purchase.
Answer:1/2
Step-by-step explanation:
3/6 =1/2
