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MArishka [77]
3 years ago
9

Four multiplied by the sum of 8 and a number is the same as 59 more than the number. find the number.

Mathematics
1 answer:
Daniel [21]3 years ago
5 0
The sum of 8 and a number is 8 + x.  Now multiply that by 4 to get 4(8 + x).  The word "is the same as" means "equals" 59 more than the number, which means we add 59 to the unknown we have called x.  So our equation now looks something like this (exactly like this, actually): 4(8 + x) = x + 59.  Simplifying a bit gives us 32 + 4x = x + 59.  3x = 27 and x = 9.  The number is 9!
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Answer:

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Step-by-step explanation:

For this we will substitute gummy bear price for "x" and jelly bean price for "y" which creates this system (also assuming there is no sales tax involved):

1.8x + 0.6y = 10.26

1.2x + 1.5y = 15.09

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4 0
3 years ago
The route to an ancient pyramid is 79 miles long.
Nostrana [21]

The route to an ancient pyramid is 79 miles long; if 20 miles is travelled each day for 3 days, the distance travelled in the fourth day would be 19 miles.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Let the distance travelled in the first day be 20 miles. If the same time was travelled for 3 days, hence:

3(20) + x = 79

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The route to an ancient pyramid is 79 miles long; if 20 miles is travelled each day for 3 days, the distance travelled in the fourth day would be 19 miles.

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8 0
1 year ago
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Answer:

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Step-by-step explanation:

8 0
2 years ago
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At Clement's Jr. High School, a student needs an 86 average to earn a B. Sue's average on
andriy [413]

Answer:

Sue must score 94 on the final test to earn a B.

Step-by-step explanation:

There are five tests in total.

Sue's average on the first four tests is 84.

If after the final test, she scores X, she will have a B on average of five tests.

We have the following equation:

86 = (4 × 84 + X)/5

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3 years ago
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