Math practice for 13 year olds - page 143 of 434
Number of problems found: 8676
- Quadrilateral eq3
Three sides of a quadrilateral are equal to the foreside, which is 16 cm long. What is the length of the one with equal sides if the perimeter is 58 cm? - Equivalent expression
Pablo rewrites the expression 8y-24 as 8(y-3). Hana rewrites 8y-24 as 2(4y-12). Are Pablo's and Hana's expressions each equivalent to 8y-24? Explain your reasoning. - Dimensions of rectangle
Find the dimensions of a rectangle, given that its perimeter is 110 cm. Its length is 1 cm, more than twice its width. - Picture 2
The picture free is 14.2 cm long and 10.4 cm wide. The frame has a uniform border of 2.6 cm. Find the area of the photograph. - Percent to interval
76% is between which the following two numbers. 1) 1/5 & 1/4. 2) 1/3 & 1/2 3) 2/3 & 7/10 4) 3/4 & 5/6 - A number 5
A number is divisible by 24, 25, and 120 if it is increased by 20. Find the number. - The cost 3
The cost of 2 ¾ liters of petrol is Rs 250 ½. What is the cost of 1 liter of petrol?
- Markup
A store pays $370 for a bicycle. The percentage of markup is 19%. What is the selling price of the bike? - The area
The area of a rhombus is 143 m². If the longer diagonal is 26 m, find the shorter diagonal in inches named d1. - Profit margin
If total sales for the month are $450,000 and the profit margin is 40%, how much was the cost of goods sold? - Using
Using the point-slope equation, find the equation containing (-7, 3) and slope m = -4 - Two fifth
Two-fifths of the workers in a factory are men. The rest are women if there are 28 men. How many more women than men are there? - Dice 7
A standard number cube is tossed 210 times. What is a reasonable prediction for the number of times the number cube will land on a 5? - Nelly 2
Nelly buys a board game. She pays for the board game and pays 1.54 dollars in sales tax. The sales tax rate is 5.5 percent. What is the original price of the board game before tax? - Two-fifths
Two-fifths (2/5) of a pound of chicken for each person. How many pounds of chicken are required if eight people are to feed?
- Two cities
On a map, 1.5 cm represents 50 miles. If the distance between the two cities on the map is 6 cm, how many miles separate the towns? - Equivalent equation
Which equation, when solved, results in a different value of x than the other three? A. - (7)/(8) x - (3)/(4) = 20 Negative 7/8 x minus three-fourths = 20 B. (3)/(4) + (7)/(8) x= -20 Three-fourths + 7/8 x = negative 20 C. - 7 (1)/(8)x - 3/4 = 20 Negat - Swimming pool 5
A rectangular inflatable swimming pool is 3 yards long, 2 5/8 yards wide, and 1 3/5 yards tall. What is the volume of the pool? Round the result to the nearest tenth. - Language test
Your language test scores are 58, 68, 89, and 95. What is the lowest you can earn on the next test while still achieving an average of at least 79? - Petrol as fuel A car can travel 480 miles on a full tank of petrol. The tank holds 60 liters. The fuel gauge shows there are 15 liters left in the tank. How many more miles can the car travel before it runs out of petrol?
Do you have unsolved problem that you need help? Ask a question, and we will try to solve it. Solving math problems.
