Counter example. The sum of three fractions with odd numerators is never 1/2

The time t (in hours) that it takes a group of volunteers to build a playground varies inversely with the number n of volunteers. It takes a group of 10 volunteers 12 hours to build the playground. How long would it take a group of 15 volunteers?

Give a description of the rules for the order of operations in ur own words

Clarke borrows $16,000 to buy a car. He pays simple interest at an annual rate of 6% over a period of 3.5 years. How much does he pay altogether? A $18,800 B $19,360 C $19,920 D $20,480

Given - 1,-4,-7,-10 the next term is x= The pattern is The rule is

A pattern has 10 blue triangles to every 30 yellow triangles. What is the ratio of yellow triangles to all triangles?

Four more than seven times a number is the same as twenty less than three times the number. Find the number

Mary and Nancy roasted coffee beans. Mary roasted one fourth of the beans and Nancy roasted one eighth of them. If together they roasted 3 kg of the beans, find the total weight of the beans.

If 8% sales tax is charged on the sale price, what is the total with tax?

In your own words define what it means to simplify. Give an example of a math problem that needs to be simplified, and then simplify it

Let us go back to the infancy of the field of geology; our task is to find a way to approximate the mass of the earth. Let us assume that the earth is a sphere of homogeneous and uniform mass density.