In a family, the sum of the ages of four kids is 30 years less than the sum of the ages of their parents. In how many years will these sums be equal?

The diameter of small Nerf balls manufactured overseas is expected to be approximately normally distributed with a mean of 5.2 inches and a standard deviation of. 08 inches. Suppose a random sample of 20 balls is selected.

The physical education instructor asks each student to do a total of 36 pull-ups and push-ups in 3 minutes. The instructor wants to do 8 times as many push-ups and pull-ups. Write a system of linear equations that represent this situation.

Consider the number set 10,8,2,13,9. A number is added to the number set which makes the range 15. What could the number be? There are two answers.

What is the slope of the proportional function 1/3y = x?

On a bicycle shop there are 23 bysicels and 18 tricycles each bicycle and has two wheels and Eastern cycle has three wheels how many whales are there in the bicycle shop

Jessica is baking a cake the recipe says that she has to mix 96 grams Jessica knows that 1 cup of this particular sugar has a mass of 128 grams she added 1/2 of a cup of sugar to the flour.

Sara is cutting ribbon for a craft project. she has 4 feet of ribbon, which must be cut into 7 equal lengths. how long will each piece of ribbon be after she has finished cutting

Eight more than seven times a number is 8

Blank verse is a new development in poetry. a. True b. False

Solve and graph 2r - 9 > - 6 9x-5 7 4x+3 > - 17 and 7x-4<10