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Question
If −3y>21 , which inequality gives the range of values of y ?(1 point)
Responses
y>−7
y greater than negative 7
y>7
y greater than 7
y<7
y less than 7
y<−7
Correct answer: y<-7
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Question
A seesaw spinner designed for children aged 6–8 years old has 4 seats. The total weight limit for 4 riders is 170 pounds. Four children want to use the seesaw spinner. Three of the four children already weigh a total of 120 pounds. At most, how heavy can the fourth child weigh for the total weight to be within the limit? Write the missing operation and symbol so the inequality will represent the maximum weight of the fourth player.(1 point)
w
120
170
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Since three children already weigh a total of 120 pounds, the fourth child can weigh up to 170 pounds in total. The inequality to represent this would be:
120 + w ≤ 170
Answer: + ≤
13 of 1413 of 14 Items
Question
A seesaw spinner designed for children aged 6–8 years old has 4 seats. The total weight limit for 4 riders is 170 pounds. Four children want to use the seesaw spinner. Three of the four children already weigh a total of 120 pounds. At most, how heavy can the fourth child weigh for the total weight to be within the limit? Write the missing operation and symbol so the inequality will represent the maximum weight of the fourth player.(1 point)
w ? 120 ? 170
The missing operation symbol to represent the maximum weight of the fourth child is ≤ (less than or equal to).
The inequality would be:
w + 120 ≤ 170
This implies that the weight of the fourth child plus the weight of the three children should be less than or equal to the total weight limit of 170 pounds.
Stefani needs to earn at least $250 for her trip to the upcoming softball tournament. She babysits on Saturday night and earns $48. Write and solve an inequality to show how much more Stefani needs to earn. Show your work.(2 points)
Let x be the amount Stefani still needs to earn.
Given she has already earned $48, the total amount she needs to earn is at least $250.
The inequality representing this situation is:
48 + x ≥ 250
To find how much more Stefani needs to earn, solve for x:
x ≥ 250 - 48
x ≥ 202
Therefore, Stefani needs to earn at least $202 more.