Math practice for 13 year olds - page 21 of 362
Number of problems found: 7231
- Guadalupe
Guadalupe bought snacks for her team's practice. She bought a bag of chips for $1.93 and a 15-pack of juice bottles for a total cost before tax of $32.83. Write and solve an equation that can be used to determine x, the cost of each bottle of juice. - The ratio 17
The ratio of tomatoes to red apples is 2:5. If there are 20 tomatoes, how many red apples are there? - Five added
Five is added to the square root of the product of nine, and a number is equal to eight. Find the number. - It takes 2
It takes 7 1/5 seconds for a jet to fly 1 km. How long does it take for this jet to fly 3/4 of a km?
- Children
Of the estimated 2 billion children living in the developing world, approximately 400 million do not have access to safe drinking water. Approximately what percentage of children in developing countries do not have safe water to drink? - A bank
A bank reported that x/12 more first-time buyers took a mortgage out last month. If a quarter more mortgages were taken out, what number (x) is missing? - The ratio 16
Express the following ratio in simplest form: 90:100 - Evaluate 40
Evaluate a+bc-d if a=78, b=-716, c=0.8, and d=14 . Write your answer as a fraction in simplest form. - Ramit
Ramit bought 10 pens,8 pencils, and 4 books; pens were Rs.5 1/2 each, pencils were Rs.2 1/2 each and books were Rs. 11 1/2 each; how much did they cost together?
- Panting
If the base of the triangle is 2 3/4 meters & and the altitude is 3 2/3 meters, then what is the cost of panting on both sides at ₹3 1/2 per sq.m.? - Estimate and exact
A) estimate 0.34 x 0.063 by rounding both numbers to one significant figure b) work out the exact value of 0.34 x 0.063 compare answers to parts a) and b) - Sqrt of sum
Find one-third of the square root of 81, the sum of 12, and the product of 3 and 12. - Linda
Linda gave her sister 2/5 of her money, spent 1/3, and saved the remainder. If Linda saved $28.00, how much money did she have at first? - Dostaneli If we get 5% of the amount that Petr has in his wallet and 4% of the amount that Paul has with him, we will have 46 CZK. However, if we get 4% from Peter's and 5% from Paul's, we will only have 44 CZK. How many crowns do Petr and Paul have with them?
- Twice squared
If the square of twice a number is 81, what is the number? Give a positive number x. - There 35
There are three points on a straight line: A, BC. If CD = 8x, DE = 3, and CE = x + 10, what is CD? Simplify your answer and write it as a proper fraction, mixed number, or integer. - Can you Can you help me solve this math problem? I need to know the answer after multiplying 2 2/3 by 2 1/4 and then adding 1 2/3 divided by 1 4/5. Thank you in advance for your assistance.
- Comparing by height
Ira is 1 2/5 m tall. Her mother is 4/5 m as tall as Ira. How many times is Ira's mother taller than her? - X intercept
Given: 3y+2x=-6 Calculate the X-intercept.
How many 1/35-inch thick books can fit on a 1 4/12-inch long bookshelf?Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
