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Alexus [3.1K]
2 years ago
7

310 is 40% of what number

Mathematics
2 answers:
dsp732 years ago
7 0
What number of 40% is 410
x * 40/100 = 410
x * 40/100 : 40/100 = 410 : 40/100
x = 410 : 2/5
x = 410 * 5/2
x = 205 * 5
x = 1025
Papessa [141]2 years ago
3 0
516-309.6
517-310.2  i think

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Step 1. Simplify \frac{1}{5} (x+5) to \frac{x+5}{5}

\frac{x+5}{5} = \frac{1}{4} (x-3)+1

Step 2. Simplify \frac{x+5}{5} to 1+ \frac{x}{5}

1+ \frac{x}{5} = \frac{1}{4} (x-3)+1

Step 3. Simplify \frac{1}{4} (x-3) to \frac{x-3}{4}

1+ \frac{x}{5} = \frac{x-3}{4} +1

Step 4. Cancel 1 on both sides

\frac{x}{5} = \frac{x-3}{4}

Step 5. Multiply both sides by 20 (the LCM of 5,4)

4x=5(x-3)

Step 6. Expand

4x=5x-15

Step 7. Subtract 5x from both sides

4x-5x=-15

Step 8. Simplify 4x-5x to -x

-x=-15

Step 9. Multiply both sides by -1

x=15

Done! :) Hope this helps! :)








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