Math practice for 13 year olds - page 145 of 423
Number of problems found: 8441
- If-then equation
If 1/2 + 2/5s = s - 3/4 What is the value of s? - Percentages 8
What percent (%) is the amount of 12 from a base of 69? Round the final result into two decimals. - The sum 10
The sum of the three decimals is 938.629. Two of them are 456.54 and 392.69. Find the third one. - Francesca
Francesca is growing 1/2 inch each year. How many years will it take for her to grow 6 inches? - Quadrant four
Which point is located in Quadrant IV? A coordinate plane. A(-8, 6) B(-8, -6) C(8, -6) D(8, 6) - Tyreek
Tyreek, Antuan, and Alex are given a total of $3500 to be shared among themselves in the ratio of 3:5:12. How much does each get money? - What is 9
What is the value of x in the proportion of 2 and one-fourth over x = 1 and one-half over 3 and three-fifths? 2 and two-fifths 5 and two-fifths 8 and 1 over 10 12 and 3 over 20 - Simple linear equation
What is the solution to the equation 70 = 1.4y? - Boats 2
Three-quarters of the boats in the marina are white. 4/7 out of the remaining boats are blue, and the rest are red if there are nine red boats. How many boats are in the marina? - The sum 9
The sum of two integers is 4. Their difference is 8. What are these two integers? - A map 4
A map represents every 4 miles with 1 inch. If a school and a bank are 12 miles apart, how far apart are they on the map, in inches? - Chocolate bar
Shen's chocolate bar is 54% cocoa. If the weight of the chocolate bar is 54 grams, how many grams of cocoa does it contain? Round your answer to the nearest tenth. - The sum 8
The sum of the two numbers is 21. If three times the smaller numbers are two less than twice the larger number, find the two numbers. - Flowerbeds
There are three square flower beds on the square grassy plot. What percentage is the grassed part of the land when one side is 35 m, and the side of the flowerbed is 10 m? - Josh works
Josh works mowing lawns and babysitting. He earns $7.20 an hour for mowing and $6.80 an hour for babysitting. How much will he earn for 1 hour of mowing and 6 hours of babysitting? - Mohammed
Mohammed grew a garden last year. His plot of land was 6 3/4 feet by 10 feet. This year, he wants to have twice as much area as his garden. How much area will the new garden take up? - Draw a triangle
We have line segments with lengths of 3cm, 5cm, 6cm, 7cm, and 9cm. What is the probability in % that if I randomly select three of them, I will be able to draw a triangle? - You must
You must level a rooftop unit with shims on the curb. If you need to shim the unit 13/16" on one side, how many shims will be required if it is given 1/8" and 1/16" shims? Use ten shims exactly. - Consider 2
Consider the following formula: y = 3 ( x + 5 ) ( x - 2 ). Which of the following formulas is equivalent to this one? A. Y=3x²+9x-30 B. Y=x²+3x-10 C. Y=3x²+3x-10 D. Y=3x²+3x-30. - The spinner
The spinner below is spun 12 times. It landed on I 4 times, II 7 times, and III 1 time. What is the difference between the experimental and theoretical probabilities of landing on the II?
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