Unit 8: Lesson 7 Percent of a Number

3/7/2016

Describe a situation where you might need to find a percent of a number. Write a problem to go with your situation. Do not write the answer. Answer other people's situations.

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65 Comments

WyattB

4/24/2017 08:01:19 am

You might need to know how to have percents in baseball for the percentage of what you hit or how much you do something. Say there was a guy that hit 89 times in a month. He hit 67 percent of the time. How many times did he hit the ball?

Ms. Curtis

4/24/2017 12:28:07 pm

I like your real-world application! Do we need to know how many total pitches he had during that month?

dayne

4/24/2017 12:49:41 pm

there are 12 kids on a baseball team 4% of them leave for spring break
how many are there?

Calvin

4/24/2017 08:04:52 am

You might need to find a percent in a situation when your counting how many people in a area/city. You are counting people and it turns out there city have 3% of the worlds population (7,499,987,950) how many people in the area/ city?

Ms. Curtis

4/24/2017 12:30:23 pm

Great social studies application! Once you figured out the population, could you then figure out the population density?

Ashlyn

4/24/2017 08:10:24 am

The store is a place where you can use percents.
$30.00 x 50% =

Calvin

4/24/2017 08:20:33 am

1.5

Ms. Curtis

4/24/2017 12:33:03 pm

Almost, Calving. 50% of $30.00 is $15.00. (Remember, 50% is 1/2.)

Ms. Curtis

4/24/2017 12:31:14 pm

Great idea! Think of the sales you could go to and calculate the sales price!

Taylor Scott

4/24/2017 08:14:06 am

You can use percents at a grocery store..... for example.

$80 x 50% = $40

Ms. Curtis

4/24/2017 12:33:51 pm

Great idea! Are you able to come up with a more challenging problem?

Kaylinn

4/24/2017 08:15:57 am

How long your and someone else's house.
your house is 50% as long as your neighbors. Your neighbors house is 250 feet long. How long is your house?

Ms. Curtis

4/24/2017 12:34:59 pm

I like the real-world application! Well done!

Lily

4/24/2017 08:18:13 am

You use percents to find how much of a chance you have.
If a circus can choose to go to 48 states but, only chooses 6, what is the percent that 1 state will be chosen.

Ms. Curtis

4/24/2017 12:36:09 pm

Great application! If the product that your company makes is sold in 36 states, what percent of the states have access to your product?

Emily

4/24/2017 08:18:55 am

At the bank you may want to see what half of how much money you have in your allowance. If you have the problem $182.000 X 50%, how much money do you have?

Ms. Curtis

4/24/2017 12:37:28 pm

Also... banks make loans... they charge interest... interest is calculated using percents...

Nancy

4/24/2017 08:20:27 am

A situation that you might need to find a percent of a number is if a store has a sale. A grocery store is havng a sale 25% off anything $30.

Ms. Curtis

4/24/2017 12:38:03 pm

Can anyone figure out Nancy's sales price?

Ms. Curtis

4/24/2017 12:39:08 pm

Great application!

Katrina

4/24/2017 08:23:35 am

In a shelter there are 440 animals. 30% of the animals are cats. How many cats are there?

Ms. Curtis

4/24/2017 12:38:34 pm

Great application! Where are all the cat lovers?

Kayleen

4/24/2017 10:24:08 am

If you went to a day care with 225 kids. 67% of the kids are boys how many are their.

Ella

4/24/2017 10:24:08 am

First you move your decimal to the left twice for the first number them times them together and you get your answer.

tyler

4/24/2017 10:24:14 am

The school has raised 57% of their 1425 goal. How much money is left to raise?

tyler

4/24/2017 07:07:05 pm

You might need to find a percent of a total of money or goal.

Elyonna link

4/24/2017 10:24:22 am

There's a shelf full of 142 books, 56% of them are history books, how many books are about history.

Treyton

4/24/2017 11:35:32 am

One situation that you might need to find the percent of a number is if you are wondering how many girls are in your class and you already know how many boys are in the class.

Mrs. Beyers class has 28 students. 43 percent of those students are males/ boys what how many are girls?

Eli

4/24/2017 11:38:45 am

if 200% of the current number of people in the world (7.5 billion) were alive, overpopulation would occur. How many people are required to cause of population?

Syd

4/24/2017 11:43:48 am

15 billion

Johnnie

4/24/2017 11:39:01 am

There are 90 people. 5% need water. How many people need water?

Syd

4/24/2017 11:39:54 am

If you went to a party and at this party their are 30 snack options and you can only have 10% of them. How many snacks can you have?

Eli

4/24/2017 11:40:37 am

Marin

4/24/2017 11:40:31 am

There are a total of 98 watermelons in the grocery store. 12% of the watermelons were gone by the end of the day. How many watermelons are left in the grocery store?

Sarah W.

4/24/2017 12:29:25 pm

86.24 Watermelons- but shouldn't the watermelons remaining be a whole number? Beside that, great application!

Jayden

4/24/2017 11:46:02 am

Your at your friends house and there are 100 options to eat and only 15% of them so how may options can you have?

Bella

4/24/2017 11:46:33 am

You went to a park and you brought 50 snacks and you could only eat 15% of them. How many snacks are you allowed to eat??

Raegan

4/24/2017 03:32:18 pm

7.5

Randallen

4/24/2017 11:50:47 am

We have explored less than 5% of the worlds oceans. Oceans cover 70% of the Earth. How much ocean do we need to explore?

Sarah W.

4/24/2017 12:25:44 pm

You might use percents to distribute things.

In Africa, people collect water every day. On average, they collect 2.5 gallons per day. In family of five, if each person gets 20% of their 2.5 gallons of water, how much water does each person get?

Ms. Curtis

4/24/2017 12:28:37 pm

Great question! I like the real-world application!

tyler

4/24/2017 07:11:13 pm

Each person gets 0.5 of a gallon of water.

Kaitlyn

4/24/2017 12:30:04 pm

A situation where you might need to find a percent of a number could be your mom gave you 100 dollars and your sister took 25%. How much did she take?

Ms. Curtis

4/24/2017 12:44:42 pm

I am guessing your sister took way too much!!! Does anyone know how much? Good question (naughty sister)!

Katie

4/24/2017 12:30:29 pm

You baked cookies and had 30 to sell at the bake sale, the people ate 80% of the cookies. How many cookies did they eat.

Ms. Curtis

4/24/2017 12:43:05 pm

Are these the people at the bake sale, or the people at home (like brothers and sisters)? Great question!

Lane

4/24/2017 12:34:32 pm

You might need to find a percent when mixing pig feed. One pig gets this much feed out of the bag. One pig needs 5% fat a day out of the bag, but there is only 20% of the bag left. How many more days until the bag runs out?

Ms. Curtis

4/24/2017 12:41:15 pm

Good Job! Also 4-H students might have to have a certain percent to the pig's diet protein. Or a percent of the weight tells you how much medicine to give the animal.

Ava Pesch

4/24/2017 12:37:02 pm

We need to use percent of a number when buying something. Such as, If a box of cookies is on sale. If the cookies are 40% off and they are originally 10, then how much are the cookies?

Ms. Curtis

4/24/2017 12:42:01 pm

Good question! Does anyone have an answer for Ava?

tyler

4/24/2017 07:12:34 pm

ethan

4/24/2017 12:50:19 pm

There are 7 engines and one rocket ship. You have 50% of the engines you need. How many more engines do you need?

tyler

4/24/2017 07:13:21 pm

7 more engines

Colin

4/24/2017 12:50:33 pm

You are at the store and you have a coupon for 13% off of eggs and a dozen eggs cost 2.38$ how much would the eggs cost after using the coupon.

Annabelle

4/24/2017 12:50:46 pm

You bought a candy bar at the store. But you have to have to share it with four people. What percent will you get of the candy bar.

Max

4/24/2017 02:49:03 pm

If there are 15 people in a group of 30 you would have to find out the percent like blue.

Rachel

4/24/2017 02:53:26 pm

You are at the clothing store. You want to buy a shirt for $26.70. The shirt 40% off. How much will you end up paying?

Avery

4/24/2017 03:05:57 pm

There are 1000 people in the high school there are 30% 9th graders how many 9th graders are there?

Raegan

4/24/2017 03:27:44 pm

You might need to find a percent of something with your grade. For example, if their are 18 problems, and you got 85% of them right, how many questions are right?

Kayla

4/24/2017 03:51:57 pm

There were 56 dogs but, the shelter only had enough money to buy bags of food for 25% of them. How many dogs didn't get fed?

Rachel

4/24/2017 06:09:03 pm

Marin

4/24/2017 05:54:04 pm

14 dogs didn't get fed at the animal shelter.

Riley

4/24/2017 06:50:24 pm

When you are in chemistry class in high school you will mix chemicals using for percents such as there is 200 grams in the mixture. Out of 200 grams 20% is boric acid and 30% is sulfuric acid then 50% percent is water.

Kaylee

4/25/2017 03:58:55 am

You could you percents at s store.
$45 * 64%

Unit 8: Lesson 7 Percent of a Number

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