Question

5 • 4 − 8 ÷ 2

6

10

0

16

Answer 1

Order of operations again :)

5 • 4 − 8 ÷ 2

5 • 4 = 20

8 ÷ 2 = 4

20 - 4 = 16

Answer 2

Which phrase matches the algebraic expression below?
3(x + 7) + 10

Three times the difference of x and seven plus ten

Three times x minus seven plus ten

Three times the sum of x and seven plus ten

Three times x plus the sum of seven and ten

Answer 3

well x + 7 = the sum of x and 7

adding another 10 would be altogether the sum of x and 7 plus 10

And three times that is three times the sum of x and 7 plus 10

Answer 4

Evaluate the following expression using the values given.
Find 4x − 2y if x = −1 and y = −2

0

8

−8

2

Answer 5

We would just plug them in

4(-1) - 2(-2)

What does it come out to ...?

Answer 6

-8?

Answer 7

-4 - (-4)

remember when you are subtracting a negative...you just change it to positive and adding

-4 + 4 = 0

Answer 8

Evaluate the following expression using the values given.
Find 4x − 2y − z, if x = 2, y = 3, and z = −6

−2

8

6

−6

Answer 9

Okay same thing here

4x - 2y - z

plugging in those numbers given

4(2) - 2(3) -(-6)

What does THAT come out to?

Answer 10

6

Answer 11

4(2) = 8
2(3) = 6

so we have

8 - 6 - (-6)

remember subtracting a negative...

8 - 6 + 6

Looks like 8 :)

Answer 12

\[Select the verbal phrase that corresponds with the given expression. (x – 3)^{2} \]
x minus 3 squared

x less than 3 squared

The quantity 3 minus x squared

The difference of x and 3 squared

Answer 13

Hmm I want to say the first one...but not too sure hang on

Answer 14

ok

Answer 15

Yeah the first one is how we all would say it..

Answer 16

Sarah decides to take her six year old son to the circus. The price for the child's ticket is 4.75 dollars less than the price for the adult's ticket. If you represent the price for the child's ticket using the variable "x", how would you write the algebraic expression for the adult's ticket price?

Answer 17

Childs ticket = 4.75 less than adults so an adult ticket would be that price....plus 4.75

A = x + 4.75

Answer 18

Simplify the following expression.
2x − 10y + 3x2 + 7y − 10x

3x2 − 8x − 3y

3x2 − 8x − 17y

3x2 + 8x − 3y

3x2 − 12x + 3y

Answer 19

I thought you said a couple :P

Im assuming that is 3x²

so combine like terms

3x² is the only number with a variable squared...so it stays alone

2x - 10x = ...?

-10y + 7y = ...?

Answer 20

3x2 − 8x − 17y

Answer 21

Not quite...remember it is -10y + 7y

You're getting closer to a positive number so this should be

3x² - 8x -3y

Answer 22

\[ Use the distributive property \to simplify the expression below: \frac{ 1 }{ 2 }(g − 12)\]

Answer 23

Same thing as before here

1/2 times g = 1/2g
and
1/2 times -12 = -6

so we have

1/2g - 6

Answer 24

\[Evaluate: 32 + (8 − 2) • 4 − \frac{ 6 }{ 3 }\]

Answer 25

Parenthesis first

8 - 2 = 6

32 + 6 * 4 - 6/3

Now do your multiplication and division

6 * 4 = 24

6/3 = 2

32 + 24 - 2

Left to right

56 - 2

54

Answer 26

wait i wrote it wrong lol

Answer 27

\[3^{2}+(8−2)∙4−\frac{ 6 }{ 3 }\]

Answer 28

Oh okay lol...well again parenthesis

8 - 2 = 6

3² + 6 * 4 - 6/3

then exponents

3² = 9

9 + 6 * 4 - 6/3

now multiplication and division

6 * 4 = 24
6/3 = 2

9 + 24 - 2

left to right

33 - 2

31

Answer 29

se the distributive property to simplify the expression below:
−3(2u − 1)

−5u − 3

−6u + 3

−5u + 3

−6u − 3

Answer 30

-3 times 2u = ...?
-3 times -1 = ...?


*remember a negative times a negative = a positive*

Answer 31

−6u + 3

Answer 32

perfect!

Answer 33

thank you<33333333333333333333333333

Answer 34

haha no problem! :)