Functions - practice problems

Number of problems found: 4643

Baking 5
Baking 120 kg of bread requires 87 kg of flour. How many kilograms of flour will be needed to bake 400 kg of bread?
Normally distributed
Suppose the height of male youngsters is normally distributed with a mean of 60 inches and a standard deviation of 10. what percentage of the boy's height would we expect to be between 44 and 75, less than 49, and 76 and more?
The perimeter
The perimeter of a rhombus whose diagonal lengths are in the ratio 3:4 is 40 cm. What is its area in cm²?
Soccer season
Joel is training for soccer season. On Monday, Joel exercises for 20 minutes before school, and 25% of that time is spent playing soccer. On Mondays, he exercises for 60 minutes after school, and 40% of that time is spent playing soccer. What is the total
6 Pipes
6 Pipes are required to fill a tank in 1 hour 20 minutes. How long will it take if only five pipes of the same type are used? Give your answer in hours and minutes.
Thabo
Thabo uses 3 ½ liters of petrol per week for his motorcycle. How long will he be driving with 49 liters?
Socks
Ben's favorite colors are blue and green. He has six blue socks and six green socks in his sock drawer. Unfortunately, they are completely mixed up, and one day, he has to grab some socks to wear in complete darkness. How many socks (minimum) does he have
Car uses
The car uses 91 liters of petrol to travel 700km. Determine the rate in liter per 100km.
Sipho
Sipho and John got the same amount of work, Sipho did 19/34 of his homework, and John did 23/41 of his homework. What percentage of his homework did John do, and what percentage of his homework did Sipho not do?
Making profit
If I make a profit of 25% on selling a bottle of drink for 85, how much did I buy the drink?
AMJ
There are three siblings, Anne, Maya, and Jane. Anne gave Maya and Jane as much money as each had. Then Maya gave Anne and Jane as much money as each had. Then Jane gave Anne and Maya as much money as each had. Then each of the three had 128 pesos. How mu
Mrs. Conley
Mrs. Conley asks her class what kind of party they want to have to celebrate their excellent behavior. Out of all the students in the class, 5 want an ice cream party, 7 want a movie party, 10 want a costume party, and the rest are undecided. How many stu
A car 6
A car holds 15 liters of fuel. The car consumes 3 liters of fuel each 100 km. We started a trip of 350 km with a full tank of fuel. How much fuel remains in the tank at the end of the trip?
Solve 16
Solve for the value of the variables x: y:30=3:21
Nicolette
Nicolette makes a small bead bracelet using five red, eight purple, and six green beads. A large necklace has the same ratio of beads as a small bracelet. If the large necklace requires 15 red beads, how many purple beads are needed to make a large bracel
A solution
A solution of salt and water has 15% salt by weight. From it, 30 kg evaporated, and the solution now contains 20% salt. Find the original quantity of the solution.
Carbohydrates
Suppose five pieces of candy contain 11 grams of carbohydrates. How many grams of carbohydrates do 20 pieces contain?
Mrs. Sojka
Mrs. Sojka gave her class 12 minutes to read. Natalie read 7 1/2 pages in the time. At what rate in pages per hour did Natalie read?
A man 8
A man has 72 sheep. He wants to divide the sheep among his four children in the ratio of 5:3:2:2. How many sheep will each child get?
Erica’s
Erica’s bank account increased from $1,200.00 to $1,500.00. By what percent did the amount of money in her bank account increase?

Do you have homework that you can't solve? Ask a question, and we try to solve it.