Solve y=5x-8 and y=6x+3 by elimination

Answers

Answer 1

Answer: $\left \{ {{y=5x-8} \atop {y=6x+3}} \right.$

Arrange equation variables for elimination :

$\left \{ {{y-5x=-8} \atop {y-6x=3}} \right.$

y - 6x = 3
- y - 5x = -8
______________
-x = 11

For y :

y - 6 x = 3

y - 6 ( - 11 ) = 3

y + 66 = 3

y = 3 - 66

y = -63

x = - 11 y = -63

hope this helps!

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The play will be negative 12 degrees tonight, the weatherman predicts it will be 25 degrees warmer by noon tomorrow, what was the temperature be by noon tomorrow?

Answers

the temperature differential is based on the numbers on a line with the negative numbers left of zero and the positive numbers right of zero.

Using -12 on the number line, add 25 to it to get the noon temperature tomorrow.

Awnser -12 + 25 = 13

The temperature tomorrow at noon will be 13 degrees.

Questions?

The answer is 13 degrees.

Hope this helps!

*Simple math question* The eighth grade class at grade school has 15 girls and 14 boys. How many different boy-girl dates can be arranged?

Answers

The eighth grade class at grade school has 15 girls and 14 boys. The different boy-girl dates that can be arranged is 210 boy-girl.

What is the unitary method?

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

The eighth grade class at grade school has 15 girls and 14 boys.

The different boy-girl dates can be arranged

15 x 14 = 210

210 boy-girl

Hence, The different boy-girl dates that can be arranged is 210 boy-girl.

Learn more about the unitary method;

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15*14=210
210 boy-girl dates

What is 7/8 in a decimal

Answers

You don't need anybody else to give you the answer.
It's really easy to do it yourself.

A fraction is a short way of writing a division problem.
Every fraction means

(the top number) divided by (the bottom number) .

When you pick up your pencil or your calculator and actually do
the division, the answer you get is the decimal form of the fraction.

To find the decimal form of 7/8, just divide 7 by 8 .

It is 0.875, because you divide it, and once you do, you get 0.875.

Which graph shows the solution set of the inequality x^2+10+16/x-3 >0