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ihavemathquestions
Group Title
Find the value of y for a given value of x, if y varies directly with x.
If y = –252 when x = 84, what is y when x = 74?
 2 years ago
 2 years ago
ihavemathquestions Group Title
Find the value of y for a given value of x, if y varies directly with x. If y = –252 when x = 84, what is y when x = 74?
 2 years ago
 2 years ago

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swiftskier96 Group TitleBest ResponseYou've already chosen the best response.2
Do you know how to cross multiply?
 2 years ago

ihavemathquestions Group TitleBest ResponseYou've already chosen the best response.1
yea
 2 years ago

swiftskier96 Group TitleBest ResponseYou've already chosen the best response.2
Ok. Well here is the problem you are talking about. dw:1349372516244:dw
 2 years ago

swiftskier96 Group TitleBest ResponseYou've already chosen the best response.2
Now just solve for y. Whats the answer?
 2 years ago

ihavemathquestions Group TitleBest ResponseYou've already chosen the best response.1
1764 = 84y
 2 years ago

swiftskier96 Group TitleBest ResponseYou've already chosen the best response.2
What i did is when i cross multiplied, i got 252(74) = 84(y). Then it looked like this...dw:1349372692894:dw
 2 years ago

swiftskier96 Group TitleBest ResponseYou've already chosen the best response.2
Now just multiply 252 and 74 and divide it by 84. And that equals?
 2 years ago

ihavemathquestions Group TitleBest ResponseYou've already chosen the best response.1
222
 2 years ago

swiftskier96 Group TitleBest ResponseYou've already chosen the best response.2
Correct!
 2 years ago

ihavemathquestions Group TitleBest ResponseYou've already chosen the best response.1
xo
 2 years ago

ihavemathquestions Group TitleBest ResponseYou've already chosen the best response.1
For each function, what is the output of the given input? For f(x) = 4x + 7, find f(4)
 2 years ago

swiftskier96 Group TitleBest ResponseYou've already chosen the best response.2
Is this a quick check or quiz? Cause i remember doing something like this.
 2 years ago

ihavemathquestions Group TitleBest ResponseYou've already chosen the best response.1
this is just my brother and i we make eachother do math its like fun
 2 years ago

ihavemathquestions Group TitleBest ResponseYou've already chosen the best response.1
we find random q's online
 2 years ago

ihavemathquestions Group TitleBest ResponseYou've already chosen the best response.1
these are the qs im giving to him that idk the answer and i needa know the answers so i can check his
 2 years ago

swiftskier96 Group TitleBest ResponseYou've already chosen the best response.2
Ohh ok. Well that should be easy to do. Just plug 4 into x. It should look like this. f(4) = 4(4) + 7.
 2 years ago
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