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Whitepunk [10]
3 years ago
13

Raffey is upgrading his cell phone and monthly service plan check sell offers a new phone for $50 and unlimited service for a mo

nthly fee of $40 cellular offers a new phone and unlimited service for a monthly fee of $50 after how many months were the cost of the two phones and monthly service fees be the same
Mathematics
1 answer:
miv72 [106K]3 years ago
8 0

Answer: it will take 5 months for both plans to cost the same.

Step-by-step explanation:

Let x represent the number of months before the cost of the two phones and monthly service fees would be the same.

check sell offers a new phone for $50 and unlimited service for a monthly fee of $40. This means that the total cost of using this plan for x months would be

50 + 40x

cellular offers a new phone and unlimited service for a monthly fee of $50. This means that the total cost of using this plan for x months would be

50x

For both plans to cost the same, the number of months that it will take is

50 + 40x = 50x

50x - 40x = 50

10x = 50

x = 50/10 = 5

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Which equation is the inverse of 5 y + 4 = (x + 3) squared + one-half?
8_murik_8 [283]

The inverse of the given function is y = √5x + 7/2 - 3

<h3>Inverse of a function</h3>

Given the function expressed below;

5y + 4 = (x+3)² +1/2

5y = (x+3)² - 7/2

y = 1/5(x+3)² - 7/10

Replace y as x

x = 1/5(y+3)² - 7/10

Make y the subject of the formula

5x = (y+3)²- 7/2

(y+3)² = 5x + 7/2

y+3 = √5x + 7/2

y = √5x + 7/2 - 3

Hence the inverse of the given function is y = √5x + 7/2 - 3

learn more on inverse of a function here: brainly.com/question/3831584

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4 0
1 year ago
A jar contains 2 green marbles, 4 blue marbles, and 3 yellow marbles. A marble is chosen at random from the jar and replaced. Fi
omeli [17]

Answer:

2/27

Explanation:

• Number of green marbles = 2

,

• Number of blue marbles = 4

,

• Number of yellow marbles = 3

Total = 2+4+3 =9

• Probability of choosing a green marble = 2/9

,

• Probability of choosing a yellow marble = 3/9

Therefore, the possibility that the first marble is green and the second is yellow is:

\begin{gathered} =\frac{2}{9}\times\frac{3}{9} \\ =\frac{2}{27} \end{gathered}

8 0
10 months ago
Can't put it in look at photo pls​
Katyanochek1 [597]

x ^{ - n}  + x ^{2n}

That's my answer Brainliest me!

6 0
2 years ago
Jade needs 5 pounds of ground beef to make lasagna for a family reunion one package of ground beef weighs 2 1/2 pounds another p
Ivanshal [37]
Jays would have 1/10 of a pound left. This is the answer considering that 2 35 is 2 3/5 you find the common denominator then add the ywo then take away five.

7 0
2 years ago
Read 2 more answers
Use graphing technology to find the range of the function f(x)=2^x<br> .
Zinaida [17]

Look at the graph, which y values can the graph hit?

Anything above zero would be the right answer, since there is an asymptote at y=0.

So the range would be y>0

Hope this helps.

頑張って!

5 0
3 years ago
Read 2 more answers
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