Samiya

Ms.York has 32 boys and 18 girls in her science class. She ramdomly selects 1 student to help her sweep the floor. What is the probability that the student she selects will be a girl?

A farmer uses 11/18 of his field for growing rice and 3/7 of the remaining field for growing tomatoes. Of the area thus left he uses 1/4 of it to grow spinach and the rest to grow sweet potatoes.What fraction of the field is used for growing sweet potatoe...

A man left 3/7 of his money to his wife, 1/2 of the remainder to his brother, and the rest he divided equally among his three children. If each of his children received $400, how much did his wife receive? I did this: Let the money be: x Wife received: 3/...

A plane flies from city x to city y against the wind in 8 hours and flies back from city y to city x with the wind in 5 hours. If the speed of the wind is 650 mph, find the wind speed in mph?

From 1980 to 1990 the population of London increased by 6%. From 1990 to 2000, the population of the city decrease by 3%. What was the overall percentage change in the population of London from 1980 to 2000?

A man left 3/7 of his money to his wife, 1/2 to his brother and the rest of it he divided equally among his 3 children.If each of children received $400, how much did his wife receive?

Am not understanding how you got that answer