Is there a trick to finding the value of X? Example: 75% of x = 1050 90% of x = 1260 I know that x = 1400, but I'm wondering if there's an easy way to find it out quickly. Thx!
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Originally Posted by matoau Is there a trick to finding the value of X? Example: 75% of x = 1050 90% of x = 1260 I know that x = 1400, but I'm wondering if there's an easy way to find it out quickly. Thx! of = "Multiply" so solving each equation gives. and the second Fractions can make calculations alot easier. I hope this helps.
Yes Yes Yes!
actually, i'm confused (again) at this part: how does this give us 4? and why is the 4 and 3 flipped? division? also, where does this come from? yeah, so where does the the 350 and 140 come from? how is it derived?
so we divide both sides by 3/4 remember that 1050 can be written as a fraction and if we have a fraction divided by a fraction it is the same as multiplying by the reciprocial. So now we get... I hope this clears it up
Yes, thank you...
Just divide 1260 with 0,9. 1260/0.9 = 1400
Originally Posted by Twig Just divide 1260 with 0,9. 1260/0.9 = 1400 Fractions > Decimals Originally Posted by TheEmptySet so we divide both sides by 3/4 remember that 1050 can be written as a fraction and if we have a fraction divided by a fraction it is the same as multiplying by the reciprocial. So now we get... I hope this clears it up Nice Latex
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