Math practice for 13 year olds - page 39 of 435
Number of problems found: 8682
- Percent increase
2.22 to 2.52 What is the percentage increase? - Trapezoid 52
Trapezoid perimeter = 39a-7. Three sides have the following length: 9a, 5a+1, and 17a-6. What is the length of the fourth side? - Percents 4
900 to 1200. What is the percentage increase? - The difference 4
The difference between four times a number and five is the same as three more than twice a number. Find the number. - The area 4
In square decimeters, how much is the area of a cylinder with a height of 2 dm and a diameter of 1 dm? " - Percentages 10 Pls, convert 1/7 into a percent. What is the solution?
- A number 7
A number is such that if we multiply it by 3/5 and add 4/7 to the product, we get -2/35. Find the number.
- Average and mean
Suppose that the average of the four values, {-1, x, -2x, 3}, is equal to x - 1. Find the value of x. - The ratio 10
The ratio of length and breadth of a rectangular park is 3:2, and its perimeter is 150m. Find its area. - The linear
The linear equation 5y-3x-4=0 Can be written in the form y=mx+c. Find the values of m and c. - The total 2
The total price of a car is $17,050 the selling price is $16500. What was the sale tax - My 4 My 4-digit number is a palindrome; it has a remainder of 21 when you divide it by 100. what is my number? A palindrome is a number that does not change if you write it backward.
- Angles sum 180
In triangle ABC, the measure of ∠A is 30°, and the measure of ∠C is 90°. What is the measure of ∠B? - The distance 3 The distance covered by car in 1 hour is 38 1/2 km. Find the distance it will cover in a) 3 1/2 hours, b) 5 hours.
- A pet 2
A pet store has 15 birds and 75 fish. In the simplest form, what is the pet store's ratio of birds to fish?
- Cooking time
It should cook for 5 1/10 hours. Dinner time is 4:45 PM. What time should you start cooking the ham? - A RIBBON
A RIBBON 27 1/3 m long is cut into equal pieces measuring 2 3/4 m each. Find the number of pieces of ribbon cut. - Lorelai
Lorelai scored 15 points on her pretest. On her second try, she got 75 points. What is her percent increase? - The sum 33 The sum of two integers is -500. If one of them is 600, then find the other integer.
- There 28
There are 100 cents in a dollar. What percent of a dollar is $0.15?
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