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Juli2301 [7.4K]
3 years ago
6

The best answer gets brainiest please help!

Mathematics
2 answers:
vazorg [7]3 years ago
5 0

Answer: 1) 10x+y=7

2) 3x-y=3

x-y=1

weqwewe [10]3 years ago
4 0
( I need points sorry for commenting ! )
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explain how the position of the decimal point changes in a quote as you divide by increasing powers of 10
Marianna [84]
If you have 20/10, that equals 2. Then if you move the decimal place over 1 place then you have 2.  If you divide 2 again by 10, then move the decimal place over in another place, it is equaling 0.2.
6 0
3 years ago
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Christine runs 10 miles in 75 minutes. At the same rate, how many miles would she ru<br> I miles
Len [333]

Answer:

\frac{46}{5}  miles  [or, 9.2 miles]

Step-by-step explanation:

<u>Complete Question:</u>

Christine runs 10 miles in 75 minutes. At the same rate, how many miles would she ru n in 69 minutes?

<u>Solution:</u>

We need to find the unit rate first and then find our answer. To get unit rate, we need to know the number of miles she runs in "1 minute". So, we will divide number of miles by number of minutes, that is given. Hence:

\frac{10}{75}=\frac{2}{15}

That means in 1 minute, Christine runs 2/15th of a mile.

Now, we want to know how many miles she will run in 69 minutes. We simply multiply unit rate (2/15) by the number of minutes (which is 69). Thus we have:

\frac{2}{15}*69=\frac{2*23}{5}=\frac{46}{5}

In decimal, doing division, that is 9.2 miles

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3 years ago
The length of a rectangle is 12 ft longer than twice the width. If the perimeter is 90 ​ft, find the length and width of the rec
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Step-by-step explanation:

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2 years ago
Water bowls at 212 degrees Fahrenheit. If a pot of water is 145 degrees, find the change in temperature needed for the water to
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a study shows that, over the course of a lifetime, the average salary of college graduates is greater than the salary of people
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Answer:

Answer: The word "ensures" implies that it is certain.

In the case of the study, they simply found that the average salary is greater for college graduates. This doesn't mean that in every case the college graduate makes more money.

The problem is the word "ensures". Our study doesn't show certainty only a general pattern.

Step-by-step explanation:

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3 years ago
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