Math practice for 13 year olds - page 28 of 365
Number of problems found: 7286
- Three 232
Three out of eleven working mothers in a major US city have at least one child under the age of Five(5). If there are 2,250 mothers employed in that city, how many have at least one child under the age of five? (round to nearest whole number)
- The rope
Fred was learning to tie rope. He had 5 1/2 feet of rope. If each knot took up 4/5 of a foot of rope, how many knots could he make?
- Represent 14
Represent 10% as a fraction reduced to the lowest term.
- One-third of a drum
1/3 rd of a drum is filled with water. Needed another 60 l of water to fill the whole drum, then what is the capacity of a drum?
- Edmond 2
Edmond bought a new cage for his pet rabbit since he's gotten so big. The area of the old cage's floor was 6 square feet. The area of the new cage's floor is n square feet larger, for a total of 8 square feet. Write expressions that tell this story and fi
- Charity
Greg's grandmother is knitting scarves for charity. The table shows the number of yards needed for different types of scarves. Yarn Type ; Number of Yards Bulky ; 150 Light ; 250 Medium; 200 She plans to make bulky scarves and has no more than 2,250 yards
- A shop 6
A shop sells cool drinks at R10 (Indian rupees) each, excluding 15% VAT. What is the price of the cool Drink, including VAT?
- After 9
After reducing the price by 10%, the dress costs 270 GEL. What was the cost of the dress before it got cheaper?
- Angles 22
Angles A and B are complementary. Angle A is 29°. Find the measure of angle B.
- Area - simple
Find the area of the triangle. So, the base is 7 2/3 mi. The height is 7 mi. What is the Area?
- Peter 17
Peter ate 9 ounces of chocolate cake which was 75% of the entire cake. Which expression can be used to find the size of the full cake?
- Joey had
Joey had 70% of his money in a savings account. The rest of his money was in a cheque account. (a). What percentage of his money was in his cheque account? (b). He had $240 in his cheque account. How much money did he have in his savings account?
- The angles 4
The angles of a triangle are divided into the ratio 126: 213: 312. If the three angles sum to 180°, find the size of each of the three angles.
- Black to brown ratio
In a box, there are 20 pairs of socks, of which 65% are black and the rest are brown. What's the ratio of black and brown socks?
- A tournament
The debate team is hosting a tournament. They received $320.00 in tournament registration fees and raised $126.76 in concessions. The team would like to budget this money over the 12-month calendar year. How much money will be available each month?
- Three sets
Of 240 students, 173 are on the honor roll, 48 are members of the varsity team, and 36 are on the honor roll and are also members of the varsity team. What is the probability that a randomly selected student is on the honor roll or is a member of the vars
- A function
A function follows the rule "y is 3 less than half of x". Express y as a function of x in the form of an equation.
- A potato
A potato farmer incurred a total cost of $1600 and $2500 from producing 5 and 8 potato bags, respectively, in 2 separate weeks. Find the cost of x bags.
- Heat energy
Energy is measured using the unit Joule (J). Temperature is measured using the unit degree Celsius °C). To increase the temperature of 1 liter of water by 1°C, 4200 J of heat energy is required. (a) Kelly wants to increase the temperature of 2 liters of w
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