Question

GETS A MEDAL AND FAN WHO EVER ANSWERS ALL MY QUESTIONS!!!!!!!!!!!!!

Answer 1

Solve for x: −3x + 3 < 6

x > −1

x < −1

x < −3

x > −3

Question 2 (Multiple Choice 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.

When dividing by −8, she did not change the ≤ to ≥.

She did not make a mistake.

Question 3 (Multiple Choice 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

727.29 − 248.50 + x ≥ 500; x ≥ $21.21

727.29 – 248.50 - x ≤ 500; x ≤ $21.21

Question 4 (Multiple Choice 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

$1.50 + $0.50x ≤ $25; x ≤ 47 miles

$1.50 + $0.50x ≥ $25; x ≥ 47miles

Question 5 (Multiple Choice Worth 1 points)

[02.05]

Solve for x: 5 − (x + 5) > −2(x + 4)

x > −8

x < −8

x > −18

x < −18

Question 6 (Multiple Choice Worth 2 points)

[02.05]

A pack of paper costs $3.75 including tax. Mr. Cooper wants to purchase packs of paper for his class and has a $20 budget. Write an inequality to solve for the number of packs of paper Mr. Cooper can purchase with his budget.

$3.75x ≥ $20

$3.75x ≤ $20

$20x ≤ $3.75

$20x ≥ $3.75

Answer 2

@jigglypuff314

Answer 3

yeah okay, but I don't have as much time today :/

Solve for x: −3x + 3 < 6
x > −1
x < −1
x < −3
x > −3
to do this subtract both sides by 3
to get -3x < 3 then divide both sides by -3
and the rule is to flip the sign when multiplying or dividing by a negative

Answer 4

x > −1

Answer 5

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.
When dividing by −8, she did not change the ≤ to ≥.
She did not make a mistake.

it was the rule I was talking about before :)
you have to flip the sign when multiplying or dividing by a negative number

Answer 6

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
727.29 − 248.50 + x ≥ 500; x ≥ $21.21
727.29 – 248.50 - x ≤ 500; x ≤ $21.21

(what he has) must be greater than 500
he has a positive 727.29 to begin with
then subtracts 248.50
so you would get 727.29 - 248.50 + x > 500

Answer 7

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
$1.50 + $0.50x ≤ $25; x ≤ 47 miles
$1.50 + $0.50x ≥ $25; x ≥ 47miles

(spend) < 25
(spend) = 0.5 per mile plus 1.5 for the first
"per" is multiplication
let "mile" = x
so (spend) = 0.50x + 1.50

Answer 8

Solve for x: 5 − (x + 5) > −2(x + 4)
x > −8
x < −8
x > −18
x < −18
distribute to get 5 - x - 5 > -2x - 8 then add 2x to both sides
_2x _2x
x + 0 > 0 - 8 simplify :P

Answer 9

wait if you dont have time just give me the answers so it could be quicker good explanation but If you have to go just do the answers k is your choice. :P

Answer 10

A pack of paper costs $3.75 including tax. Mr. Cooper wants to purchase packs of paper for his class and has a $20 budget. Write an inequality to solve for the number of packs of paper Mr. Cooper can purchase with his budget.
$3.75x ≥ $20
$3.75x ≤ $20
$20x ≤ $3.75
$20x ≥ $3.75

"pack" = x
"per" means to multiply
so 3.75 per pack = 3.75x
which has to be less than (<) 20

Answer 11

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Answer 12

lol ur right

Answer 13

good night