Last Friday

3/4 of the children were present at school last Friday. If 90 children were present, how many were absent?

Final Answer:

a =  30

Step-by-step explanation:

p=90  43 (p+a)=p 43 (90+a)=90  3/4 (90+a)=90  3a=90  a=390=30  a=30



Help us improve! If you spot a mistake, please let let us know. Thank you!







Tips for related online calculators
Need help calculating a sum, simplifying, or multiplying fractions? Try our fraction calculator.
Do you have a linear equation or system of equations and are looking for a solution? Or do you have a quadratic equation?

You need to know the following knowledge to solve this word math problem:

algebranumbersGrade of the word problem

Related math problems and questions: