# Expression of a variable from formula - examples - page 25

- Circle annulus

There are 2 concentric circles in the figure. Chord of larger circle 10 cm long is tangent to the smaller circle. What are does annulus have? - 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)? - 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? - Simple sequence

Continue with this series of numbers: 1792,448, 112, _, _ - 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? - Center of line segment

Calculate the distance of the point X [1,3] from the center of the line segment x = 2-6t, y = 1-4t ; t is . - The garden

The garden has the shape of a rectangular trapezium. The bases have lengths of 27 meters and 36 meters, the trapezoid's height is 12 meters. Calculate how much fence will cost this garden if one meter costs 1.5 €? - Evaluation of expressions

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

Simplify expression: 5ab-7+3ba-9 - 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? - 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} - 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? - 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 - Given

Given 2x =0.125 find the value of x

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