# Expression of a variable from formula - examples - page 24

- Oranges

Mother divided her three children's oranges in a ratio of 6:5:4. Two children gave 45 oranges. How many oranges were there? - Test scores

Jo's test scores on the first four 100 point exams are as follows: 96,90,76, and 88. If all exams are worth the same percent, what is the minimum test score necessary on his last exam to earn an A grade in the class (90% or better)? - Simple sequence

Continue with this series of numbers: 1792,448, 112, _, _ - Bricklayer

How much do we pay for a bricklayer laying a pavement in a square room with a diagonal of 8 m, if 1 sqm with work will cost for CZK 420? - Drying herbs

Herbs lose 75% weight By drying. How many fresh herbs do you have to collect if you want to make 1.5 kg of dried herbs? - Evaluation of expressions

If a^{2}-3a+1=0, find (i)a^{2}+1/a^{2}(ii) a^{3}+1/a^{3} - Perimeter of a rectangle

If the perimeter of a rectangle is 114 meters and the length is twice the width plus 6 meters, what are the length and width? - Simplify 2

Simplify expression: 5ab-7+3ba-9 - Twenty

Twenty rabbits are put in 4 cells so that there are different number of rabbits in each cell contains at least 3 rabbits. What is the largest possible number of rabbits in one cell - GP members

The geometric sequence has 10 members. The last two members are 2 and -1. Which member is -1/16? - Expression

Solve for a specified variable: P=a+4b+3c, for a - Algebra

X+y=5, find xy (find the product of x and y if x+y = 5) - A rectangle

A rectangle has an area of 36 cm^{2}. What could the length and width of rectangle be? - Find the 2

Find the term independent of x in the expansion of (4x^{3}+1/2x)^{8} - Expression with powers

If x-1/x=5, find the value of x^{4}+1/x^{4} - Evening shift

While working the evening shift, Officer K took 8 hours to complete a task at his work station and Officer M took 10 hours to complete the same task at his work station. How many hours would it take Officer K and Officer M to complete the same task working - Sides of triangle

Triangle circumference with two identical sides is 117cm. The third side measures 44cm. How many cms do you measure one of the same sides? - Given

Given 2x =0.125 find the value of x - Workers 9

If two workers fix two windows in an hour how many windows can 18 workers fix in the same two windows?

Do you have interesting mathematical example that you can't solve it? Enter it and we can try to solve it.