Question

Are My Answers Right?

Answer 1

The length of a rectangle is three times its width. If the perimeter is at most 112 centimeters, what is the greatest possible value for the width? Write an inequality to model the problem.
(Points : 1)
2w + 2 • (3w) ≥112
2w + 2 • (3w) < 112
2w + 2 • (3w) > 112
2w + 2 • (3w) ≤112


Question 2.2. The length of a rectangle is five times its width. If the perimeter is at most 96 centimeters, what is the greatest possible value for the width?
(Points : 1)
40 cm
19.2 cm
16 cm
8 cm


Question 3.3. Josephine started a business selling cosmetics. She spent $4500 to obtain her merchandise, and it costs her $200 per week for general expenses. She earned $550 per week in sales. What is the minimum number of weeks it will take for Josephine to make a profit? Write an inequality to model the problem.
(Points : 1)
550w > 4500 + 200w
200w > 4500 + 550w
550w < 4500 + 200w
200w ≥ 4500 + 550w


Question 4.4. Reiko started a business selling home medical supplies. She spent $5200 to obtain her merchandise, and it costs her $550 per week for general expenses. She earned $900 per week in sales. What is the minimum number of weeks it will take for Reiko to make a profit? Solve the problem.
(Points : 1)
15 weeks
14 weeks
13 weeks
12 weeks


Question 5.5. Mia is three years older than twice her sister Brooke’s age. The sum of their ages is less than 30. What is the greatest age Brooke could be?
(Points : 1)
7
8
9
10

Answer 2

2 and 4 are wrong
But
3 and 5 are right

Answer 3

same answer as nikato

Answer 4

thanks for medal annie96

Answer 5

what?! i gave you that medal cram. haha

Answer 6

sorry I am kinda confused answering like twelve questions a once but thanks