Isolating a variable in the formula - math word problems - page 127 of 144
Number of problems found: 2871
- 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.
- Rectangle
The perimeter of a rectangle is 48 cm. Calculate its dimensions if they are in the ratio 5:3 (width: height)
- Price saleoff
Shoes cost y euros. They were first discounted by 12% and then 50% of the new amount. After this double discount, the cost was exactly 22 euros. Determine the original price of the shoes.
- Coefficient
Determine the coefficient of this sequence: 7.2; 2.4; 0.8
- Four-thirds 3852
Anton said: I have a natural number x. I'll get three times as much if I increase it to four-thirds. What number did Anton mean?
- Determine 3851
Michal would cut the fence himself in 12 hours. It would take Michal and Juraj 8 hours together. Determine how long it would take for Juraj to do the job.
- Lighthouse
The man, 180 cm tall, walks along the seafront directly to the lighthouse. The male shadow caused by the beacon light is initially 5.4 meters long. When the man approaches the lighthouse by 90 meters, its shadow is shorter by 3 meters. How tall is the lig
- Determine 3841
Determine the value of x: 2^x = (2-3): 2
- Determine 3840
Find z if 12^z = 1/144
- Natural 3838
Find a natural number whose square root is 27 times its square root.
- Tetrahedral prism
Calculate the area and volume of a tetrahedral prism that has a base rhomboid shape, and its dimensions are: a = 12 cm, b = 70 mm, v_a = 6 cm, v_h = 1 dm.
- Volume and area
What is a cube's volume with an area of 361 cm²?
- Difference 3832
Determine the difference AP if a1 = -7.5 and a1 + a2 = 4.8.
- Previous 3824
There are 48 bottles in the third row, seven fewer in each row than in the previous row. Find the number of bottles in the first row.
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