System of equations - practice problems
Number of problems found: 1507
- One angle
One angle is 10 degrees more then 4 times the measure of the other angle. Togetther they have a sum of 120 degrees.what is the measure of each angle?
Tanya bought three adult tickets and one children's ticket to a movie for $22.10. Li bought five adult tickets and four children's tickets for $43.60. Find the cost of one adult ticket and the cost of one children's ticket.
- Five friends
Five friends ate a 12-slice pizza. Samir ate three times as many slices as Joe. Joe ate half as many slices as Emily. Kendra and Fong together ate half a pizza. Kendra ate one third as many slices as Samir. Fong ate the most slices. What fraction of a piz
- I bought 2
I bought 2 bottle of alcohol and 2 sanitizer for Php126. How much is a bottle of alcohol, if the costs of alcohol is five times the costs of sanitizer?
- Movie theatre
At the movie theatre, child admission is 5.40, and adult admission is 9.70. On Thursday, the theatre sold 159 tickets for a total sales of 1142.40. How many child tickets were sold that day?
- A Shopkeeper 4
A Shopkeeper gave a bill to a customer. The bill was in two digits but was mistakenly interchanged thereby undercharging the customer by $45.00. If the sum of the digits is 9, find the actual value of the bill.
- The lengths
The lengths of the twelve poles form an Arithmetic Progression (A. P). If the third pole is 3m and the eighth pole is 5 m, find the (i) Length of the first pole (ii) Sum of the length of the poles
- The cost 5
The cost of three chairs and four tables is 320.00. If two chairs and five of the same kind cost 330.00, find the cost of (i) 4 chairs (ii) 3 tables
- Carrots and potatoes
Juri is doing his weekly grocery shop and buying carrots and potatoes. He calculates that the average weight of a carrot is 60 g and the average weight of a potato is 125 g. Furthermore, he calculates that the average weight of the carrots and potatoes he
- Estimate linear fx
Which of the following is the best estimate for the temperature at 11 pm if the temperature continues to drop at the same rate? time; temperature °C 3 PM; 32 6PM; 30 12PM; 20
- A speedboat
A speedboat goes 900 km against a current of 25 km/hr. It took 10 minutes longer for his trip than it would have taken it to travel with the current. What is the speedboat’s speed in still water?
- A rectangle 12
A rectangle has a width 7.2 cm shorter than its length. The perimeter of this rectangle is 22.8 cm. Write the width-to-length ratio of this rectangle in the simplest form and show how you solve the problem.
- Mdm Low
Madam Low bought 4 cakes and 4 puffs for $16. Each cake cost $0.50 more than each puff. How much did 1 puff cost?
- Three trucks
There are places A and Y, three trucks, B, C, and D, respectively. Truck B is 60 km/h, C is 40 km/h and D is 80 km/h. Trucks B and C start at place A while D starts at Y. After D and B meet, two hours later, will D meet C. What is the distance between pla
- Numbers 74084
I think two numbers. The first is smaller by 30 than the second. The sum of these numbers is 60. What two numbers do I think?
Amanda borrowed $5000 from two sources: her parents and a credit union. Her parents charged 3% simple interest and the credit union charged 6% simple interest. If after 1 year, Amanda paid $225 in interest, how much did she borrow from her parents, and ho
Melanie invests a total of $21,500 in two accounts. The first account earned a rate of return of 15% (after a year). However, the second account suffered a 10% loss in the same time period. At the end of one year, the total amount of money gained was $225
- The sum 22
The sum of three consecutive whole numbers is 27. Find the numbers by showing all the steps.
- Busi has
Busi has a bag containing twenty balls. There are twice as many yellow balls than blue balls, but the yellow balls are only a third of the red balls. The green balls are the same number as the blue balls. How many are each of the colour ball?
- Determine 73454
The volume of the cut cone is V = 38000π cm³. The radius of the lower base is 10 cm larger than the radius of the upper base. Determine the radius of the base if height v = 60 cm.
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