Register
A student answers 70 ​% of the questions on a math exam correctly. If he answers 21 questions​ correctly, how many questions are on the​ exam?
92.5k views
5 votes
A student answers 70 ​% of the questions on a math exam correctly. If he answers 21 questions​ correctly, how many questions are on the​ exam?

User Marmistrz
by
6.5k points

1 Answer

2 votes
There are 30 questions in all
User Teshia
by
7.1k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

7.6m questions

10.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!