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S_A_V [24]
3 years ago
15

Mark solved 18 out of 20 problems correctly on his math quiz. What percent of the problems were correct?

Mathematics
1 answer:
Stella [2.4K]3 years ago
4 0
90%

18/2= 9
20/2= 10

9/10
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What is another to refer to coincident lines?
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Mr. Chin went to a store where he spent one-half of his money and then $14 more. He then went to another store where he spent on
ElenaW [278]

Answer:

Before going to the first store he had $ 112.

Step-by-step explanation:

Before going to the first store Mr. Chin had all his money, which we will call by "x". After the first store he had:

y = x/2 - 14

He then went to a second store and he spent all his money in a way that:

y/3 - 14 = 0

Because after that store he had no money left. So we can use the second equation to solve for y and then use that value to solve for x, that is the  amount of money he had before going to the first store. We have:

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Before going to the first store he had $ 112.

6 0
3 years ago
Mark has a postcard with a width of 3 1/3 inches. He wants to enlarge the postcard by a factor of 9 1/2 to make a poster. Which
Anna11 [10]

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C. The poster will have an width of 31 2/3 inches.

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Hey guys, hope your day is going well, can you plz help me with is question thank you, i will give 10 pts.
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