423 Questions for the topic Percentages

Percentage question; my husband wants to sell his guitar... again.

So my husband wants to sell his guitar on consignment. He wants to get $300 from it. Assuming it is a 25% consignment sale cost for the store, we then multiplied 300*.25 and got 75. So we added... more

how do I set up this problem to be solved? what should the equation look like?

A grocery store manager notices that this month her store sold a total of 874 gallons of ice cream, which represents a decrease of 11% from last month. On the other hand, her store sold 626 pounds... more

What is 128.1 as a percentage of 91.5.

percentage question

I have three schools participating in a volunteer challenge.School 1 has 250 students volunteered 100 hoursSchool 2 has 100 students volunteered 25 hoursSchool 3 has 400 students volunteered... more

calculating percentage

In a distribution where the mean is 30 and the standard deviation is 6, what percentage of all scores occur between 24 and 36

Commission based query.

Why is "commission = 100+8% of sales above 500" in mathematical form, written as:commission = 100 + 0.08(sales-500)?I do not get the '(sales-500)' part. How is sales above 500 interpreted as... more

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

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

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

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

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 

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?

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

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?

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

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

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

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

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

02/19/19

The population of a bee hive is growing with a monthly percentage rate compounded continuously. The population doubles in 3 months.

The population of a bee hive is growing with a monthly percentage rate compounded continuously. The population doubles in 3 months.Find the monthly percentage rate according to the exponential... more
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