anonymous
  • anonymous
4/5 = x/75 pls help me im desperate
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Multiply both sides by 75.
anonymous
  • anonymous
k so do i do anything after tht?
anonymous
  • anonymous
Just try to simplify the answer.

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anonymous
  • anonymous
k wait um i just learned this so when u say both sides?
anonymous
  • anonymous
After you multiply by 75, you get: \[{4 \over 5}(75)=x \]
anonymous
  • anonymous
so um uh wow if i had any idea it was this hard id ask my teacher so x= 75?
anonymous
  • anonymous
x=75 times 4/5
anonymous
  • anonymous
ohhhhhh k thank u sooo much i hate my math hw this is just the 2nd prob so im in 4 it lol
anonymous
  • anonymous
You should simplify it actually, your answer should be x=(75/5)(4)=15*4 --> x=60. So your final answer is x=60
anonymous
  • anonymous
so i got my anwnser and i think x=300
anonymous
  • anonymous
300 is too much :)
anonymous
  • anonymous
oh so even if its simplifiying prportions
anonymous
  • anonymous
Which grade are you in?
anonymous
  • anonymous
7th
anonymous
  • anonymous
AnwarA u there?
anonymous
  • anonymous
Yeah.
anonymous
  • anonymous
k
anonymous
  • anonymous
You still have another question?
anonymous
  • anonymous
yah but its alot and i dont wanna bother u
anonymous
  • anonymous
It's alright. I still have got few minutes.
anonymous
  • anonymous
really thanks!
anonymous
  • anonymous
7/8 = 56/n a. 8n=56 b. 7n=56 c. 7n=448 or d. none of these
anonymous
  • anonymous
Have you heard about cross multiplication?
anonymous
  • anonymous
yah but im not 2 good @ it
anonymous
  • anonymous
It's ok. You soon will be.
anonymous
  • anonymous
Let me rewrite it: \[{7 \over 8}={56 \over n}\] Now multiply the top of the left side by the bottom of the right side, and the top of the right side by the bottom of the left side.
anonymous
  • anonymous
i did 58\[\times\] 8 and gt 464
anonymous
  • anonymous
So you multiply 7 by n and 56 by 8, you then get: 7n=56*8 But as you said 56*8=448. So the answer would be: 7n=448
anonymous
  • anonymous
Is that clear?
anonymous
  • anonymous
ohhh thank u
anonymous
  • anonymous
You're welcome. Wish you the best luck.
anonymous
  • anonymous
thanks
Gina
  • Gina
\[4/5=x/75, 5x=4*75 then x =4*75/5\]
Gina
  • Gina
sportsbabe get your answer

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