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il63 [147K]
3 years ago
11

Joe and Beth both wash cars for extra cash. Joe charges a base fee of $15 and $8 per car after that. Beth charges a base fee of

$45 and $6 per car after that. At least how many cars will joe need to wash to have more money that Beth? A. 13 cars B. 14 cars C. 15 cars. D. 16 cars
Mathematics
1 answer:
Ksenya-84 [330]3 years ago
8 0

Answer:

C- 15 cars.

Step-by-step explanation:

To do this, you will need to set up an equation as follows:

8x+15=6x+45

Then you will subtract 6x from each side. Then you will have this:

2x+15=45

Then you will subtract 15 from each side, and then you will have:

2x=30

Then you will divide each side by 2 and you will get 15. Hope this helped!

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Li deposited $17,500 into a bank account that earned simple interest each year. After 2 years, he had earned $2975 in interest.
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Let x is the interest rate

$17,500 * 2 * x = <span>$2975
</span>$35,000x = $2,975
x = $2,975/$35,000
<span>x = 0.085

0.085 * 100 = 8.5%

Answer: annual interest rate was 8.5%

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3 years ago
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A room that is 5 meters long has an area
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Answer:

Breadth=x+2

Step-by-step explanation:

Solution,\\\\Length(l)=5m\\\\Area=5x+10m^{2} \\\\Breadth(b)=?\\\\As,\\\\Area=l*b\\\\5x+10=5*b\\\\b=\frac{5x+10}{5}\\\\b=\frac{5x}{5} +\frac{10}{5} \\\\b=x+2

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2 years ago
Can you answer problem 11?
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2 years ago
Find the distance between (-7, -3), (5, 2)
Salsk061 [2.6K]

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8 0
3 years ago
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Joyce rented a booth at a carnival at a cost of $95 to sell handmade beaded necklaces. The cost of making and packaging each bea
xz_007 [3.2K]

Answer:

To make a profit of at least $500 she must sell at least 12 necklaces

Step-by-step explanation:

Joyce rented a booth at a carnival at a cost of $95 to sell handmade beaded necklaces. The cost of making and packaging each beaded necklace was $15. If Joyce sells the beaded necklaces at $35 each then we have to find beaded necklaces she sell to make a profit of at least $500.

The costs side of the equation, we have:

Let no. of necklaces that she sell are x

∴ The cost of making and packaging x beaded necklace is $15x

Total Cost = 95+15x

Now, Joyce sells the beaded necklaces at $35 each. Therefore, selling price will be $35x

To make a profit of at least $500 the equation can be written as

95+15x+500\leq35x

595\leq50x

⇒ x\geq11.9=12

Hence,  to make a profit of at least $500 she must sell at least 12 necklaces



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3 years ago
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