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Mathematics 14 Online
OpenStudy (anonymous):

Find the cost of 3 items if the cost function is C(x) = 12x + 3. 45 15 39 30

OpenStudy (anonymous):

@J-bird

OpenStudy (anonymous):

@J-bird

OpenStudy (anonymous):

im here

OpenStudy (anonymous):

k, I have 4 more Q's after u answer the first one

OpenStudy (anonymous):

this one is easy, its 39

OpenStudy (anonymous):

Find the revenue from selling 10 items if the revenue function is R(x) = 175 − 12x. 163 55 150 45

OpenStudy (anonymous):

whats 10 x 12?

OpenStudy (anonymous):

120

OpenStudy (anonymous):

good now whats 175 - 120??

OpenStudy (anonymous):

50

OpenStudy (anonymous):

good, see i told you it was easy :D

OpenStudy (anonymous):

next question??

OpenStudy (anonymous):

50 isn't in the answers

OpenStudy (anonymous):

hmm

OpenStudy (anonymous):

poh wait you did your math wrong :P

OpenStudy (anonymous):

you took off an extra 5, its 175 - 120 not 125

OpenStudy (anonymous):

so just add 5 to your answer

OpenStudy (anonymous):

Find the revenue from selling 22 items if the revenue function is R(x) = 250 − 7x. 102 211 96 243

OpenStudy (anonymous):

hey j-bird how are you a human calculator

OpenStudy (anonymous):

if you get 50 medals in mathematics you can unlock title

OpenStudy (anonymous):

ok whats 7 x 22?? @DUDE..LOOK..ITS..SGTC

OpenStudy (anonymous):

easy 154

OpenStudy (anonymous):

im trying to help this huy with his math, he needs to answer

OpenStudy (anonymous):

guy*

OpenStudy (anonymous):

150

OpenStudy (anonymous):

nope

OpenStudy (anonymous):

oh

OpenStudy (anonymous):

154

OpenStudy (anonymous):

its ok to use a calculator

OpenStudy (anonymous):

there you go

OpenStudy (mandre):

Just substitute x with the number of items then you have simple math which will solve all problems of the same type. It's the same as saying "If x = 10, what is 175-12x?"

OpenStudy (anonymous):

now 250 - 154

OpenStudy (anonymous):

i need help with a problem

OpenStudy (anonymous):

hang on a sec @calebisawesome

OpenStudy (anonymous):

96

OpenStudy (anonymous):

k i already asked the question it is hard for me

OpenStudy (anonymous):

ok next question

OpenStudy (anonymous):

The revenue function for making waterslides is given by R(x) = 10x − 115. How much revenue is generated from the selling of cost 323 waterslides? $3,225 $3,115 $3,455 $3,875

OpenStudy (anonymous):

10 x 323

OpenStudy (anonymous):

3230

OpenStudy (anonymous):

good, now subtract 115

OpenStudy (anonymous):

3115

OpenStudy (anonymous):

there you go, do you have any more??

OpenStudy (anonymous):

last one The cost function for making jeans is given by C(x) = 0.5x + 15. The revenue function for making jeans is given by R(x) = 1.4x + 10. What is the break-even point for manufacturing jeans (rounded to the nearest jean)? 4 pairs of jeans 5 pairs of jeans 6 pairs of jeans 7 pairs of jeans

OpenStudy (anonymous):

brb, garbage need out

OpenStudy (anonymous):

K

OpenStudy (anonymous):

ok im back

OpenStudy (anonymous):

k

OpenStudy (anonymous):

the Q is up

OpenStudy (anonymous):

you can do this one by substitution. with each of the answers, substitute them as x in both equations and see if they are equal

OpenStudy (anonymous):

now i have to go help someone else sorry

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