Fractions + expression of a variable from the formula - practice problems - page 6 of 17
Number of problems found: 324
- Two thirds
Find two-thirds of the number equal to two-thirds of 99. Find this number. - Chocolate 4302
How much does whole chocolate cost when 2/3 costs 24 cents? - Star equation
If 5/21 + 14/21 + ☆ = 1, then what is the value of ☆? - The expression
What is the value of the expression ((6²+60))/(23)
- Boys and girls
There are 28 girls in the hall. 5/7 of all children are boys. How many children and how many boys are there? - Product of two fractions
The product of two fractions is 9 3/5. Suppose one of the fractions is 9 3/7. Find the other fraction. - Simple equation 3
24 = n • 27, solve for n - Find unknown 2
Find unknown denominator: 2/3 -5/? = 1/4 - Two thirds
Two-thirds of the unknown number is 8/7. What is 7/3 of this number?
- Solve 16
Solve for the value of the variables x: y:30=3:21 - Expression 15443
The expression 2n + m = 52, please express an unknown n. - The plot
Mr. Duma recently inherited a rectangular plot, part of the estate left by his late father. The plot with the following dimensions: Length=2x+1; Width=x-1. Determine the formula, in terms of x, that best describes the area of the rectangular plot. He has - Disc
The circumference of the disk is 78.5 cm. What is the circumference of the circular arc of 32° on the disc? - MP3 player
Mary plans to buy a new MP3 player for 90 USD. And every month, the amount he saved in the previous month doubles. If she saves 3 USD in the first month, how many months will Mary save enough to buy an MP3 player?
- The ratio 7
The ratio of the sides of two squares is 4:5 if the sum of their areas is 180 cm². Find the sides of the two squares. - The interior
The interior angle of a regular polygon is x. If x is 9° less than the average of 153° and 145°, find the number of sides of the polygon. - Silver medal
A circular silver medal with a diameter of 10 cm is an inscribed gold cross consisting of five equal squares. What is the area of the silver part? b) What is the area of the golden cross? - Circular arc
Calculate the center angle and length of the circular arc if the radius r = 21 cm and the area of the slice is 328.5 cm² - Corresponding 59063
Calculate the radius and area of the circular segment if the center angle = 106° and the length of the corresponding circular arc is l = 52 cm.
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