Question 1

Today you'll be writing equations with two variables to solve problems instead of one variable. Open your book to pg:113 and copy the steps 1-5. Make sure to title your notes.

Accepted Answer

They are copied, what's next?

Answer

I didn't copy steps

Question 2

You will need to write an equation with two variables now. Write an equation to show: The sum of two numbers is 19.

Accepted Answer

$x+y=19$

Answer

$2x+2y=19$

Answer

$2xy=19$

Answer

$x+x=19$

Question 3

Write an equation to show: The difference of two numbers is 50.

Accepted Answer

$x-y=50$

Answer

$2x-2y=50$

Answer

$2(x-y)=50$

Answer

$2xy=50$

Question 4

The larger of two numbers is 5 more than 3 times the smaller number.

Accepted Answer

$L=3S+5$

Answer

$L=3S-5$

Answer

$L=3(S+5)$

Answer

$L+5=3S$

Question 5

The larger of two numbers is 5 more than 3 times the smaller number could also be...

Accepted Answer

$L-5=3S$

Answer

$L+5=3S$

Answer

$3L-5=S$

Answer

$L-5=S+3$

Question 6

3 small cans and 5 large cans have a total of 85 oz.

Accepted Answer

$3x+5y=85$

Answer

$3x=85+5y$

Answer

$x^{3}+y^{5}=85$

Answer

$3x-5y=85$

Question 7

6 child tickets and 4 adult tickets cost $67

Accepted Answer

$6c+4a=67$

Answer

$4c+6a=67$

Answer

$4c-6a=67$

Answer

$6c-4a=67$

Question 8

The small number doubled subtracted from the other number is 28.

Accepted Answer

$L-2S=28$

Answer

$2S-L=28$

Answer

$2(S-L)=28$

Answer

$L+2S=28$

Question 9

The small number squared subtracted by the larger is 10.

Accepted Answer

$S^{2}-L=10$

Answer

$2S-L=10$

Answer

$S-L^{2}=10$

Answer

$(S-L)^{2}=10$

Question 10

The difference between six adult tickets and 4 children tickets is $6.50

Accepted Answer

$6a-4c=6.50$

Answer

$a-c=6.50$

Answer

$\frac{6a}{4c}=6.50$

Answer

$4a-6c=6.50$

Question 11

Half the larger number subtracted from 6 times the smaller equals 20.

Accepted Answer

$6S-\frac{L}{2}=20$

Answer

$\frac{L}{2}-6S=20$

Answer

$\frac{L}{2-S}=20$

Answer

$6(\frac{S-L}{2})=20$

Question 12

Which method seems to be the best to use?

Accepted Answer

Substitution

Answer

Guess and Check

Answer

Elimination

Answer

Cramers Rule

Question 13

Which method seems to be the best to use?

Accepted Answer

Elimination

Answer

Guess and Check

Answer

Substitution

Answer

Cramers Rule

Question 14

To use elimination, you should...

Accepted Answer

Mult. (1) by 6, mult. (2) by -4

Answer

Mult. (1) by 6, mult. (2) by 4

Answer

Mult. (1) by -6, mult. (2) by -4

Answer

Can not Solve

Question 15

$1=2$

Accepted Answer

$false$

Answer

$true$

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