## Alli474 Group Title okay I took this test I got these questions wrong I was wondering if any of you could help me better understand what it is I am supposed to do one year ago one year ago

1. Alli474 Group Title

here is one of them find the percent increase from 125 to 130

2. ZeHanz Group Title

You must be careful with these kind of problems: because it increases from 125 to 130, you'll have to compare the increase of 5 with the original number (125). So 125 stands for 100%. Some find this formula handy: $change=\frac{ new-old }{ old }\cdot100\%$

3. Alli474 Group Title

wow okay thank you. how about how to write 0.347 as a percent

4. ZeHanz Group Title

Always convert a fraction to a pecentage by multiplying with 100

5. Alli474 Group Title

like 0.347*100

6. ZeHanz Group Title

Yes, so 34.7%

7. Alli474 Group Title

and how would I write 65% as a fraction or mixed number in the simplest form

8. ZeHanz Group Title

Do the opposite: divide by 100, getting$\frac{ 65 }{ 100 }$then simplify...

9. Alli474 Group Title

when something asks what is 159 is 30% of a number that like when you said multiply 30% by one hundred sorry by the way am struggle in math and I am so happy you are helping understand it

10. ZeHanz Group Title

If 159 is 30% of a number and you want to know what that number is: Divide 159 by 30 to get 1%. Then multiply by 100.

11. Alli474 Group Title

ok Jackets are on sale for 25% off. If the original price of a jacket is $120, what is the sale price? how would I do this 12. ZeHanz Group Title So$120 stands for 100%. If there is 25% off, the price goes down with a quarter, which is $30. New price:$90. Another way of doing this: look at what will be left: 25% off means: there is only 75% left, or three quarters (0.75). So 0.75*120=90. New price is \$90.

13. Alli474 Group Title

oh okay thank you now hope next time I do better