A runner ran 2/3 of a 5 kilometer race in 21 minutes. They ran the entire race at a constant speed.

a. How long did it take to run the entire race?

b. How many minutes did it take to run 1 kilometer?

the ratio of students that take french to spanish is 20:19. How do the number of students taking french and the number of students taking spanish compare.

One of the sixth grade classes at Washington School has 12 girls and 10 boys. What is the ratio of boys to total students in the class?

If there is 3.5 pounds of jelly beans for $1.19 per pound. How much did she spend on jelly beans, to the nearest cent?

The answer for this question is 24

Linda, Dale, and Jim sent a total of 83 text messages over their cell phones during the weekend. Jim sent 7 more messages than Linda. Dale sent 4 times as many messages as Jim. How many did they each send?

Greatest common factor of 8x and 40?

A small factory can produce 245 sofas each day or 315 overstuffed chairs per day. the workers produced 8,820 pieces of furniture to fill an order. if they built sofas for 18 days, how many days of production were needed to build the chairs?

At the beginning of mathematics class, Mrs. Reno gives a warm-up problem. She says, "I am think of a number such that 6 less than the product of 7 and this number is 85." Which number is she thinking of?

Louise is baking cakes to raise money for her track team. The total cost of all of the ingredients for her cakes is $62 She will sell each cake for $10 Write an equation that describes the relationship between the number of cakes Cindy sells, 2, and

Interest earned $70 at 3% for 12 years