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LenKa [72]
3 years ago
9

Shopping for a freezer, Manuit finally settled on one with a purchase price of $850. The annual cost of operating the freezer is

$40 per year. When Manuit's average cost of owning the freezer is less than $117, he plans to shop for a new freezer. When can Manuit shop for a new freezer?
Mathematics
1 answer:
MatroZZZ [7]3 years ago
3 0

Answer:

In 12 months

Step-by-step explanation:

Let a = year when average the average cost of owning a freezer would be less than $117

($850 + $40a) / a < $117

$850 + $40a < $117a

collecting like terms

$850 < $77a

a = 11.04 months

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Subtract. Write the difference in simplest form.<br><br>(5n - 3) - (-2n + 7)​
kolezko [41]

Answer:

Simplifying

(5n + -3) + -1(-2n + 7) = 0

Reorder the terms:

(-3 + 5n) + -1(-2n + 7) = 0

Remove parenthesis around (-3 + 5n)

-3 + 5n + -1(-2n + 7) = 0

Reorder the terms:

-3 + 5n + -1(7 + -2n) = 0

-3 + 5n + (7 * -1 + -2n * -1) = 0

-3 + 5n + (-7 + 2n) = 0

Reorder the terms:

-3 + -7 + 5n + 2n = 0

Combine like terms: -3 + -7 = -10

-10 + 5n + 2n = 0

Combine like terms: 5n + 2n = 7n

-10 + 7n = 0

Solving

-10 + 7n = 0

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '10' to each side of the equation.

-10 + 10 + 7n = 0 + 10

Combine like terms: -10 + 10 = 0

0 + 7n = 0 + 10

7n = 0 + 10

Combine like terms: 0 + 10 = 10

7n = 10

Divide each side by '7'.

n = 1.428571429

Simplifying

n = 1.428571429

3 0
3 years ago
PLS ANSWER ASAP
rosijanka [135]

Answer:

7/16

Step-by-step explanation:

4 0
3 years ago
PLEASE HELP AND LEAVE A SMALL EXPLANATION
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Step-by-step explanation:

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4 0
2 years ago
A recipe for French toast that serves 6 calls for 3/4 cup granulated sugar, 1 cup of evaporated milk, 1/3 teaspoon of vanilla, a
maxonik [38]
To serve 3 you half the recipe so divide each number by 2

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3 0
3 years ago
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Viefleur [7K]

Answer:

Refer to the attachment. Hope it helps you. Please mark as the brainliest. Thanks

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2 years ago
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