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serg [7]
4 years ago
11

Aurora has a cell phone plan that charges $65 for phone service plus $12 for eachgigabyte of data used each month. If her bill f

or September is $113,how many gigabytes of data did she use in September?
Mathematics
2 answers:
Ivahew [28]4 years ago
7 0

Answer:

4 gigabytes

Step-by-step explanation:

64+12+12+12+12=113

Natali [406]4 years ago
7 0

Answer:4 gigabytes

Step-by-step explanation:add 12 to 65 until you get to 113

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Solve for x. Simplify completely.<br> x^2+4x+4=8
velikii [3]
X^2+4x+4=8
-8                -8
subtract 8 from both sides 

x^2+4x-4=0

now factor using quadratic formula
ax^2+bx+c=0

x= -b +-[ (sqrt (b^2-4ac))/2a ]

x=-2(1+sqrt(2))


x= 2(sqrt(2) -1)

hope that helps, hopefully you know how to plug and chug into quadratic formula. if not you can ask for help


5 0
3 years ago
80% of x is equal to 100. Write an equation that shows the relationship of 80%, x, and 100
wariber [46]

Answer:

<u>The number is 125 and the equation is 0.8x = 100</u>

Step-by-step explanation:

80% of x is equal to 100.

Write an equation that shows the relationship of 80%, x, and 100

80% = 0.8

0.8x = 100

x = 100/0.8

x = 125

<u>The number is 125 and the equation is 0.8x = 100</u>

4 0
4 years ago
Our bill was $5.79. Avon has a 5.25% tax and our waitress earned a 15% tip. What was the total bill?
oksano4ka [1.4K]

Answer:

$6.96

Step-by-step explanation:

5.25% of $5.79

5.79 × 5.25/100 = $0.303975 or $0.30

15% of $5.79

5.79 × 15/100 = $0.8685 or $0.87

total

$0.29 + $0.87 + $5.79 = $6.96

3 0
3 years ago
Which polynomial identity will prove that 65 = 81 - 16
steposvetlana [31]
9^2 - 4^2 = (9 + 4)(9 - 4)
So the polynomial identity used here is
(x + y)(x - y) =  {x}^{2}  - {y}^{2}
8 0
3 years ago
A class of 33
pogonyaev

Answer:

42.3% or 11/26

Step-by-step explanation:

IN order to calculate the percentage of people that voted for Candidate A you just need to add up the number of votes for that candidate and then multiply it by 100 and divided by the total votes.

There were 26 voters, since there were 7 that didn´t vote for anyone, so we have that 11 voted for Candidate A:

\frac{11}{x} =\frac{26}{100}\\ x= \frac{11*100}{26}\\ x=42.30

So the percentage of voters that voted for candidate A was 42.3 percent.

6 0
4 years ago
Read 2 more answers
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