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Mathematics 8 Online
OpenStudy (katie0146722):

Which description is true about the expression twelve plus 2 times a plus 3 times b minus 6

OpenStudy (esshotwired):

What are your answer choices/descriptions?

OpenStudy (katie0146722):

4 terms 1 variable term 1 coefficient 3 constant terms

OpenStudy (esshotwired):

what do you think the answer is?

OpenStudy (katie0146722):

4 terms

OpenStudy (esshotwired):

yes thats correct :)

OpenStudy (katie0146722):

can u help me on another?

OpenStudy (esshotwired):

sure

OpenStudy (katie0146722):

]Victoria ran twenty minutes longer today than she ran yesterday. Which expression could be used to show how far she ran today, if d is used to represent yesterday? d plus twenty twenty times d twenty minus d twenty divided by d

OpenStudy (esshotwired):

well it says she ran 20 mins longer than yesterday, so make yesterday=d. since she ran 20 more mins, you add 20. so the answer would be d plus twenty

OpenStudy (katie0146722):

another?

OpenStudy (esshotwired):

sure

OpenStudy (katie0146722):

What is the rule for the sequence 47, 41, 35, 29, ? Subtract 29 from the previous number Divide the previous number by 2 Subtract 6 from the previous number Divide the previous number by 3

OpenStudy (esshotwired):

what i would do to start is subtract 47-41. that equals 6 then subtract 41-35. the answer is 6 so now that you have gotten 6 twice by subtracting, you now know the answer will be subtracting 6 from the previous number.

OpenStudy (katie0146722):

another?

OpenStudy (esshotwired):

sure

OpenStudy (katie0146722):

]Which expression has 2 numerical terms? 3 plus 8 times d f plus 2 1 plus p minus q 7 minus 5

OpenStudy (esshotwired):

do you know what numerical terms are?

OpenStudy (katie0146722):

The term “numerical” means “involving numbers” and the term “expression” means “phrase”. A numerical expression is a mathematical phrase involving only numbers and one or more operational symbols.

OpenStudy (esshotwired):

yes. so knowing that, what do you think the answer is

OpenStudy (katie0146722):

3+8*d

OpenStudy (esshotwired):

yes!

OpenStudy (katie0146722):

another lol?

OpenStudy (esshotwired):

sure

OpenStudy (katie0146722):

Which expression has 2 numerical terms? 3 plus 8 times d f plus 2 1 plus p minus q 7 minus 5

OpenStudy (esshotwired):

isnt this the same one?

OpenStudy (katie0146722):

oh sorry

OpenStudy (esshotwired):

its ok

OpenStudy (katie0146722):

Which expression has 2 numerical terms? 3 plus 8 times d f plus 2 1 plus p minus q 7 minus 5

OpenStudy (esshotwired):

my computer isnt pulling the website up. it has a cookie error lol. is there any other way you can show me it

OpenStudy (katie0146722):

let me try

OpenStudy (katie0146722):

|dw:1382986180142:dw|

OpenStudy (katie0146722):

can u see that?

OpenStudy (katie0146722):

can u?

OpenStudy (esshotwired):

yes

OpenStudy (katie0146722):

if not I will just guess on it

OpenStudy (esshotwired):

y+x(9-3)-y+3y y+9x-3x-y+3y y+6x-y+3y 6x+3y Is this the answer you needed?

OpenStudy (katie0146722):

yes how did u get it?

OpenStudy (esshotwired):

i showed my steps up there. I distributed and combined like terms

OpenStudy (katie0146722):

so it is distributed

OpenStudy (esshotwired):

the x(9-3) is distributed to be 9x-3x

OpenStudy (katie0146722):

so I am correct

OpenStudy (esshotwired):

what are your other answer choices

OpenStudy (katie0146722):

Distributive Property Commutative Property of Multiplication Identity Property of Multiplication Zero Property of Multiplication

OpenStudy (esshotwired):

so yes it would be the first one most likely

OpenStudy (katie0146722):

I think u r tired

OpenStudy (esshotwired):

why do you think i am tired?

OpenStudy (katie0146722):

u still want 2 help me ?

OpenStudy (esshotwired):

sure i will do one more then i have to do my own work

OpenStudy (katie0146722):

Which phrase represents the algebraic expression 9 divided by x? nine into a number nine of a number nine divided by a number the product of a number and nine

OpenStudy (katie0146722):

Can I add 1 more?

OpenStudy (katie0146722):

Simplify: thirty-two times j plus 8 times j plus fifteen times k minus twenty-eight times j minus 6 times k plus twenty-one times k twelve times j minus thirty times k thirty times j minus twelve times k twelve times j plus thirty times k thirty times j plus twelve times k

OpenStudy (katie0146722):

@esshotwired

OpenStudy (esshotwired):

Which phrase represents the algebraic expression 9 divided by x? nine divided by a number

OpenStudy (esshotwired):

Simplify: thirty-two times j plus 8 times j plus fifteen times k minus twenty-eight times j minus 6 times k plus twenty-one times k 32j+8j+15k-28j-6k+21k 12j+30k twelve times j plus thirty times k

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