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maksim [4K]
3 years ago
6

The students in math class played a card game. Jarrods scores were 37 points ,58 points , -17 points and -9 points. The winner w

as determined by adding the points for all the rounds. What was Jarrod’s score after four rounds of cards?
Mathematics
1 answer:
wariber [46]3 years ago
5 0

Answer:  69

Step-by-step explanation:

First add all your positive numbers 37 + 58 = 95

Then add your negative numbers -17 + -9 = -26

Finally, subtract

95

-26

___

69

The answer is positive because the positive number 95 was higher than the negative number -26.  

Hope this helps you!

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Answer:

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  • To eliminate the x-variable from the equations, you can multiply the equation with the fractions by 20 and multiply the other equation by -7.
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Step-by-step explanation:

It is always a good idea to start by defining variables in such a problem. Here, we can let x represent the number of calling minutes, and y represent the number of data minutes. The the total number of minutes used is ...

  x + y = 85

The total of charges is the sum of the products of charge per minute and minutes used:

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We can eliminate the x-variable in these equations by multiplying the first by -7 and the second by 20, then adding the result.

  -7(x +y) +20(7/20x +2/5y) = -7(85) +20(31)

  -7x -7y +7x +8y = -595 +620 . . . . eliminate parentheses

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Then the value of x is

  x = 85 -y = 85 -25

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Step-by-step explanation:

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Step-by-step explanation:

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