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mafiozo [28]
3 years ago
6

For his mobile phone service, John pays a monthly fee of $40 plus $15 for each 1 GB of data (rounded up) over his 8 GB of data t

hat comes with his plan. For his monthly charge before taxes to be at most $70, how many gigabytes of data can he use in a month
Mathematics
1 answer:
kolbaska11 [484]3 years ago
3 0

Answer:

John can use no more than 2 GB of additional data

Step-by-step explanation:

Monthly fee = $40

Additional fee = $15 for each 1 GB of data (rounded up) over his 8 GB.

Let x be the number of additional data in GB over his 8 GB of data that comes with his plan.

Total monthly charge is

C(x)=40+15x

It is given that monthly charge before taxes to be at most $70.

C(x)\leq 70

40+15x\leq 70

15x\leq 70-40

15x\leq 30

Divide both sides by 2.

x\leq 2

Therefore, John can use no more than 2 GB of additional data.

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What is the value of y in the equation 4y – 2(1 – y) = –44?
Sergio039 [100]

Answer:

-7

Step-by-step explanation:

To find y, follow these steps:

4y - 2 (1 - y) = -44

First, distribute the -2 into the parenthesis:

4y - 2 + 2y = -44

The reason the 2y is positive is due to the fact that negative and negative cancel each other out and form a positive.

Now, combine like terms:

6y - 2 = -44

To get y, you need to isolate it from the constants. In order to do so, do the inverse relationship for the constant -2. To do this, add 2 to -44:

6y = -42

Now, divide six on both sides. You divide because six is currently being multiplied with y. Keep in mind that the 42 is still negative!

y = -7

Hope this helps!

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3 years ago
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It snowed 3.4 inches on Monday and 2.92 inches on Tuesday. How much did it snow on Monday
nikklg [1K]

Answer:

6.32 in.

Step-by-step explanation:

2.92 + 3.4 = 6.32

3 0
3 years ago
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Michelle buys a motorcycle for $10,000. The motorcycle loses 20% of its value each year. The depreciation of the motorcycle is s
Anna71 [15]
After two years, the motorcycle is worth $6,400.

I hope this answer helped you! If you have any further questions or concerns, feel free to ask! :)

7 0
3 years ago
What is the value of 7x²-10, when x = 6? please help me will mark<br> brainliest
vodka [1.7K]

Step-by-step explanation:

7(6^2)-10

=7×36-10

=252-10

242

3 0
3 years ago
Lenny bought x shares of stock for Sy per share last month. He paid
gulaghasi [49]

Lenny's net proceeds algebraically are found as;\rm |xy + 20 -  \frac{98}{100} |

<h3>What is the equation?</h3>

A mathematical statement consisting of an equal symbol between two algebraic expressions with the same value is known as an equation.

Let the bought share will be $ x, and $y is the price per share

Paid fees to the broker = $ 20

The total amount spent = $(xy+20)

The price at which each share sells = $ A

Broker commission = 2 %

The total amount obtained after selling the shares;

⇒ ax - 2% of ax

⇒ 98 % of ax

Hence, Lenny's net proceeds algebraically are found as;\rm |xy + 20 -  \frac{98}{100} |

To learn more, about equations, refer;

brainly.com/question/10413253

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2 years ago
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