# Math

posted by .

Everyone in Andy’s class has to do a science project. Out of the 20 students, 80% have completed their project. How many students still need to finish their projects (got 4 students)

• Math -

Right.

• Math -

Ms. Sue is wrong. You are finding 80% of 20. Multiply 80 times 20, and get an answer of 1600.

Then, multiply 1600 by 100, and get an answer of 16. You are not simplifying.

Or, Multiply 8x2 and get 16, either way.

• Math -

No Ms. Sue is correct because you have to multiply 20 by .80 and get 16
But then you have to subtract 16 by the original number so
20 - 16 = 4
Answer is 4 students need to finish

HOPED this helps

## Similar Questions

1. ### improving it without changing its overall meaning

Ever been assigned to work on a group project for class! Many students dread group projects: because one student typically does most of the work. Unfortunately for some, group work does not end when students leave school, many employers …
2. ### English

I urgently need you to revise this email. Thank you very much in advance. 1) My science colleague is willing to work on a project in English concerning ecology with some of her students in the years 10-11. 2) Though we haven't got …
3. ### Math

There are 24 students in Mrs.Smith's 1st block class. 1/4 of the class passed the math test with an A. 12 students in the class passed the math test with a B. What percent of the students in the class passed the test?
4. ### Composition

Revise the following paragraph, improving it without changing its overall meaning. Pay particular attention to sentence structure. Ever been assigned to work on a group project for class! Many students dread group projects: because …
5. ### English

Revise the following paragraph, improving it without changing its overall meaning. Pay particular attention to sentence structure. Ever been assigned to work on a group project for class! Many students dread group projects: because …
6. ### math

ANSWER THESE NOW PLEASE !!!!!!! 2.yesterday ,a parking lot had 10 cars parked in it.of the cars parked in the parking lot l,40% were silver,3 were red,and the rest were blue.how many of the cars were blue?