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374 Answered Questions for the topic Percentages

Percentages Accounting Finance

01/10/20

Averaging percentages

How do you find the average for 3 percentages?
Percentages Algebra Ratios

01/03/20

How to change mixture for a solution with a given ratio?

I have a mixture with 70% of one composite element and 30% of another composite element. I want to change the mixture to 50%/50% and the total weight to be 1kg or 1,000g.How much of the 30%... more
Percentages Math Prealgebra

09/27/19

Help me settle an argument

If I loan my friend 26 cents and he uses that 26 cents to buy a 10,000 yacht, how much of that yacht will I own?
Percentages Math Numbers

09/12/19

What is 128.1 as a percentage of 91.5.

Percentages Chemistry Geology

07/13/19

Rock age by finding using elements and percentages

Certain element has a half life of 2.5 billion years..15% of the original element remains. The other 85% decayed into lead. How old is the rock? Analysis of another rock shows that it contains 65%... more
Percentages Math Precalculus

07/13/19

How to determine interest and payment sizes?

Jennifer borrowed $3000 from the bank in order to buy a new jacuzzi. She will pay it off by equal payments at the end of each week for 4 years. The annual interest rate is 8.05%. Determine the... more
Percentages Algebra 1 Division

06/12/19

Any reason to use division while finding a percentage?

6960.66 + 4% = 7,239.09I was told this is wrong and I should have done the math like this:6960.66 divided by .96 = 7250.68Why is this? Is the person who is telling me this wrong? I've never... more
Percentages Prealgebra

05/26/19

Word problem on money, percentages and tax

Hi can you help me solve this question? It goes like this I think I'm not fully sure thoughA man imports models from china it costs him $5.95 per model, he also has to pay 5% tax per import. He... more
Percentages Elementary Math

05/24/19

Working out different day rates?

If I have a pot of money worth £110,000 how do I work out the exact cost of:7 full day rates28 days charged at 50% of a full day rate 12 days charged at 25% of a full day rate 
Percentages Prealgebra Maths

05/13/19

Percentages question that I am stuck on

One day at a school 70% of the students wore a polo shirt. 80% of the students wearing polo shirts were boys.What percentage of the students were boys who wore polo shirts?
Percentages Writing Numbers

04/27/19

In written English, do you write fractional inequality with a percent-plus or a plus-percent?

In written English, which of the following is the correct way to convey _I have a greater than or equal to ninety percent success rate according to all measures_? >1. I have 90%+ success rate... more
Percentages Algebra 1

04/03/19

Percentages/Conversion

A video merchant sold 24 cases of tapes, which was 20% of what he had left. What percent of tapes did he sell?
Percentages Math Psat

04/02/19

PSAT question ( help please)

last week benjamin spent $82.80 on groceries and $132.48 on bills. The amount he spent on groceries was %15 of his paycheck , What percent of his paycheck did benjamin spend on bills?I need to know... more
Percentages Chemistry

04/01/19

An alloy of brass is composed of 84.6% copper, 5.20% tin, 6.70% lead, and zinc. The number of pounds of zinc required to make 520.0 pounds of alloy is "_____"

Obviously this is a homework question for my trade school. What I don't get about this is the wording. The zinc equals 3.5% of an alloy from what I put together. I don't understand though. Do these... more
Percentages Gre Gre Exam

03/27/19

Percentage evaulation Queestion from GRE?

A question from GRE book says: A candidate who gets 30 percent marks in an examination fails by 30 marks,but another candidate who gets 42 percent marks get 42 more marks than necessary for... more
Percentages Math Prealgebra

03/04/19

Help me work out my grade

For one of my university essays, I scored 57/100. That essay was worth 30%.After that, I did an exam that was also out of 100 and made up the remaining 70% of my overall grade.However, I did not... more
Percentages Prealgebra

02/19/19

The price of an item was $180. Today the price rose to $261. What’s the percentage increase

The price of an item was $180. Today the price rose to $261. What’s the percentage increase
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