Isolating a variable in the formula - math word problems - page 127 of 145

Number of problems found: 2890

Difference 3923
Determine the ninth term and the difference AP if a3 = 4.8 and a2 + a3 = 8.
Diagonal of the rectangle
Calculate the rectangle's diagonal, whose area is 54 centimeters square, and the circuit equals 30 cm.
Determine 3914
Find the quotient and the sixth term of GP if a1 = 420, a1 + a2 = 630.
Centimeters 3913
Calculate the diagonal of a square whose area equals 625 square centimeters.
Difference 3908
Determine the fourth term and the difference AP if a1 = 3.2 and a2 + a3 = 7.
Cuboid enlargement
By how many percent increases the volume of the cuboid if every dimension increases by 30%?
Millimeters 3903
The surface area of one cube wall is 2500 square millimeters. Determine the cube's surface, the length of its edge, and its volume.
Cube 5
The surface area of one cube wall is 32 square centimeters. Determine the length of its edges, its surface, and volume.
Third member
Determine the third member of the AP if a4=93, d=7.5.
Cube edge
Determine the cube's edges when the surface is equal to 37.5 cm square.
Billiard balls
A layer of ivory billiard balls radius of 6.35 cm is in the form of a square. The balls are arranged so that each ball is tangent to everyone adjacent to it. In the spaces between sets of 4 adjacent balls, other balls rest, equal in size to the original.
Unknown number 7
16% of the unknown number is 21 less than the unknown number itself. Determine the unknown natural number.
Three children
Three children eat eight chocolates in 6 days. How many chocolates do six children eat in 18 days?
Expression 3887
Determine what z equals in the expression 169^z = 2 · 6.5
Equation: 3881
What is the solution of the equation: 2^x = 2/64
Determine 3876
Determine the second term and the quotient GP if a3 = 48.6 a1 + a2 = 6
Independently 3874
Josef would do the work himself in 5 hours. Josef and Michal would do the work together in 3.5 hours. Determine how long it would take Michal to do the job independently.
Difference 3870
The difference between the two numbers is 16. They are natural numbers. The first number is 17 times larger than the second number. Identify both of these numbers.
Unknown number 5
Daniel thinks of an integer. When he changed this number to a ratio of 2:5, he got the number 2.8. Determine what number Daniel thinks.
Raspberries
Dano had 20 raspberries, and John had 90% more raspberries than Dano. Find the total number of raspberries Dano and Juraj have together.

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