3 years ago

What does it mean to solve a system of linear equation

Mathematics

1 answer:

Nana76 [90]3 years ago

7 0

Answer:

to figure out the answer / an assignment of values to the variables

Step-by-step explanation:

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What is the value of the unknown number in the verbal description? 5 times the sum of 12 and a number is 80.

mixer [17]

"5 times a sum of 12 and a number is 80" translates to the next equasion:

5 x (12+a) = 80

Now we just have to solve it to find the value of a.
$5 \times (12 + a) = 80 \\ 60 \times 5a = 80 \\ 5a = 80 - 60 \\ 5a = 20 \\ a = 20 \div 5 \\ a = 4$
The unknown number is 4.
D is the right answer.

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The correct answer is C), find the reading at |-80| degrees below the 110 mark.

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