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Karolina [17]
3 years ago
15

Devon has $200 in his savings account. He has to withdraw $8 every week to pay his friend back for some video games. The video g

ames cost $88. How many weeks will it take to pay his friend back? How much will Devon have left in his savings account?
Mathematics
1 answer:
arlik [135]3 years ago
8 0

Answer:

it will tale 11weeks to pay back his friends and he will have $112left after.

Step-by-step explanation:

88÷8=11.

200- 88 =112

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Answer:

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Step-by-step explanation:

Vertex form:  y=a(x-h)^2+k  

where:

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Given:

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Substitute given values into the formula to find a:

\implies -3=a((-2)-(-4))^2+(-1)

\implies -3=a(2)^2-1

\implies -3=4a-1

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Therefore, the equation of the parabola is:

y=-\dfrac{1}{2}(x+4)^2-1

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2 years ago
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a music store sells a used guitar for $120. This is $25 more than 1/2 the cost of a new guitar of the same brand. what is the co
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Answer:

$190.

Step-by-step explanation:

We can write the equation 120=25+1/2n where n is the cost of a new guitar. First, we subtract 25 from both sides to get 95=1/2n. Then, we multiply both sides by 2 to get 190=n. Therefore, the cost of a new guitar is $190.

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The running trail in the local park is 2.826 miles long. If the park board were planning to extend the trail by 1.46 miles, what
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