Mean mark for a class is 70%

20 whom are boys

the boys get a mean mark of 62%

work out the mean mark for girls

Judy got 60 marks in test 1. She got 40 marks in test 2. What are her average marks in both tests?

What is a multiplication problem that will get you to an answer of 2019

It takes Sally 4 hours to deliver newspapers. If Kathy works alone, it takes her 6 hours. How long would it take them working together to deliver all of the newspapers?

A dvd movie originally cost $24.99 its current price is $19.99 what is the percentof the rounded to nearest percent

What the answer to this Solve this system of two linear equations using the linear combination method? 2x-5y=18 y-x=-10

A boy is 17 years old and his sister is twice as old. when the boy is 23 years old what will be the age of his sister?

3. Find the smallest number of sweets that I can be put into bags which all cantain either 9, 15, 20 or 24 Sweets with none left over.

Larry is using an online calculator to calculate the outputs f (n) for different inputs n. The ordered pairs below show Larry's inputs and the corresponding outputs displayed by the calculator: (1, 5), (2, 9), (3, 13), (4, 17) Which of the following

Complete the statement to explain why 8,000 : 800 = 10.

What is 282% as a fraction in simplest form