Functions + expression of a variable from the formula - practice problems - page 3 of 34
Number of problems found: 673
- Numbers 19743
The two numbers are in a ratio of 4:13, the first of which is 52. Which is the second number? - Calculate 4349
Calculate x: (x-1) over (x-2) + (x-2) over (x-4) = 4 - Expression 3887
Determine what z equals in the expression 169^z = 2 · 6.5 - Determine 3841
Determine the value of x: 2^x = (2^-3): 2 - Electrons 3363
How many electrons must be together to put a charge of -1C together? - Webshop 3027
Webshop reduced the price of the suit by p percent. What was the new cost of the suit? - Directly and inversely
If z varies directly as x and inversely as y, and z = 16 when x = 3 and y = 2, find z when x = 5 and y = 3 - The tangent line
Find the tangent line of the ellipse 9x² + 16y² = 144 with slope k = -1. - Hyperbola equation
Find the hyperbola equation with the center of S [0; 0], passing through the points: A [5; 3] B [8; -10] - Table
The circumference of the rectangle table is 420 cm. Length to width ratio is 5:2 . Calculate table dimensions and dimensions reduced in the ratio of 3:5 - Smallest 79434
Find the smallest natural x such that 2x is the square and 3x is the third power of a natural number. - Circumference 20703
How do I change the length of a diamond's side if I want its circumference to double? - Determine 8115
The number of blue and green candies is 5:6. and The number of red and green candies is 3:8. Determine the ratio of red and blue candies. - Permutations 6450
Seven times the permutations of n elements equal one-eighth of the permutations of n + 2 elements. What is the number of elements? - Unknown 4281
19% of the unknown number is 12, less than 23% of the same number. Specify an unknown number. - Determine 4104
Determine the value of x in this equation: (0.125^x) · 104 = 5000 - GP sequence
Find the remaining unknown characteristics in the finite geometric sequence, if given: a1 = 5, an = 320, sn = 635, n =? q =? - Interior angles
Calculate the interior angles of a triangle that are in the ratio 2:3:4. - Sum of the seventeen numbers
The sum of the 17 different natural numbers is 154. Determine the sum of the two largest ones. - The aspect ratio
The aspect ratio of the rectangular triangle is 13:12:5. Calculate the internal angles of the triangle.
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