Question

Future FLVS students in Math [2.05]
We all know your brains are underdeveloped therefore here are the exam answers. (I A'cd mine)

Answer 1

Question 1 (Worth 1 points)

[02.05]

Solve for x: −2x − 4 > 8



(This is the correct answer) x < −6

x > −6

x < −2

x > −2

Points earned on this question: 1


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Question 2 (Worth 2 points)

[02.05]

Tony has $727.29 in his checking account. He must maintain a $500 balance to avoid a fee. He wrote a check for $248.50 today. Write and solve an inequality to solve for the least amount of money he needs to deposit to avoid a fee.

727.29 + 248.50 − x ≥ 500; x ≥ $475.79

727.29 + 248.50 − x ≤ 500; x ≤ $475.79

(This is the correct answer) 727.29 − 248.50 + x ≥ 500; x ≥ $21.21

727.29 – 248.50 - x ≤ 500; x ≤ $21.21

Points earned on this question: 2


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Question 3 (Worth 1 points)

[02.05]

Solve for x: 3 − (2x − 5) < −4(x + 2)

(This is the correct answer) x < −8

x > −8

x < −3

x > −3

Points earned on this question: 1


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Question 4 (Worth 2 points)

[02.05]

Marcie solved the following inequality and her work is shown below:

−2(x − 5) − 12 ≤ 4 + 6(x + 3)
−2x + 10 − 12 ≤ 4 + 6x + 18
−2x − 2 ≤ 6x + 22
−8x ≤ 24
x ≤ −3

What mistake did Marcie make in solving the inequality?

She subtracted 6x from both sides when she should have added 2x.

She added 2 to both sides when she should have subtracted 22.

(This is the correct answer) When dividing by −8, she did not change the ≤ to ≥.

She did not make a mistake.

Points earned on this question: 2


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Question 5 (Worth 2 points)

[02.05]

A box of crayons costs $1.75, including tax. Mr. Valentino wants to purchase boxes of crayons for his class and has a $25 budget. Write an inequality to solve for the number of boxes of crayon Mr. Valentino can purchase with his budget.

(This is the correct answer) $1.75x ≤ $25

$1.75x ≥ $25

$25x ≤ $1.75

$25x ≥ $1.75

Points earned on this question: 2


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Question 6 (Worth 2 points)

[02.05]

A cab charges $1.50 for the first mile and $0.50 for each additional mile. Write and solve an inequality to determine how many miles Sharon can travel if she has $25 to spend.

$0.50 + $1.50x ≤ $25; x ≤ 16 miles

$0.50 + $1.50x ≥ $25; x ≥ 16 miles

(This is the correct answer)$1.50 + $0.50x ≤ $25; x ≤ 47 miles

$1.50 + $0.50x ≥ $25; x ≥ 47miles

Points earned on this question: 2