Examples of equations for practice for 12 year olds - page 3 of 60
Number of problems found: 1197
- The mean
The mean of four numbers is 5, and the mean of three different numbers is 12. What is the mean of the seven numbers together?
- Solve 19
Solve equation with fractions: 1/3+what=1/5
- John has
John has read the first 114 pages of a novel. He has read 3 pages less than one-third of the novel. Write an equation to describe the total number of pages p in the novel, and find the value of p.
- Online music sharing
Regina spent $45.50 over 6 1/2 months on music downloads. If she spent the same amount each month, how much did Regina spend per month on music downloads? Choose the equation that can be used to represent the situation.
- Gustavo
Gustavo is conducting an experiment with plants for a science project. He needs to divide a certain amount of fertilizer so that each of the 12 plants gets 10.5 ounces of fertilizer. Use the guess, check, and revise strategy to solve the equation f÷12=10.
- Hans spent
Hans spent three days baking 224 cookies. On the second day, he baked twice as many as he did on the first day. On the third day, he baked half as many as he did on the first day. Which equation represents the situation if x is the number of cookies Hans
- Denominators
Find the denominator of the second fraction in the equation: 5/6×2/? =10
- A ride
A ride-share company charges $5.25 per ride for up to 4 passengers. It also charges an additional $0.50 per mile. Becca takes a ride from the airport, and it costs $9.00. She wants to figure out how many miles her house is from the airport. Which equation
- Fruits
2/3 of the fruits are cherries, and the rest are grapes. I sold 1/2 of the cherries and 1/4 of the grapes. If I had 280 left, how many fruits had I at first?
- Twice 3
Twice a certain number is added to 10. If the result is minus fourteen. Find the number
- Leo bought
Leo bought 4 T-shirts and 2 pants of pants for Pho 3000. If the T-shirts cost 300 each, find the cost of each pair of pants
- The product 11
The product is two number is 20. If one of the numbers is 5/7, what is the other number?
- Temperature 53
The temperature this afternoon was X. The temperature has fallen 5 degrees and is now 68. What was the temperature this afternoon?
- Simple coefficient
Find the value of k; if x = 3, y = 2 is a solution of the equation 2x + 3y = k.
- Three rationals
Let x, y, and z represent three rational numbers, such that y is 512 times x and z is 50.25 more than x. If y=15.5, what is the value of z?
- A sandbox
3/4 a sandbox has an area of 20 square feet. The length is 6 1/2 feet. What is the width of the sandbox?
- The sum 32
The sum of three consecutive odd numbers is 33. What are the three consecutive odd numbers?
- What number
What number must be added to both the numerator and denominator of 3/5 to get 5/6?
- Five times
Five times a number divided by three is ten. What is the number? a.5 b.6 c.7 d.8
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