System of equations - practice problems
Number of problems found: 881
- Money spending
Albert and Peter have an amount of money. If Albert spent $6 and Peter did not spend any, then the ratio of Albert's money to Peter's money is 1:3 . If peter spent $6 and Albert did not spend any the ratio of Albert's money to Peter's money is 3:7.How muc
- Two brothers
The two brothers have a total of 48 nuts. Two thirds of the nuts of the first correspond to 2/5 of the number of nuts of the second. How many nuts does everyone have?
- 11990 perimeter RT
A right triangle has integer side lengths and a perimeter of 11990. In addition, we know that one of its perpendiculars has a prime number length. Find its length.
- Peter and Martin
Peter and Martin played by 67 balls. After the game, Peter had 9 more balls than Martin. How many balls did Martin win? Solve the help of the equation.
- 4 digit number
I am a 4 digit number. my thousand period has a first digit which is thrice the second digit, the second digit is two more than the third digit, all the rest of the digits are zeros. What number am i?
- Brian 2
Brian and Jake left their homes, which are 500 miles apart, and drove straight toward each other. It took 4 hours for the two to meet if Jake's speed was 15 mph slower than Brian's speed. What was Brian's speed?
- Tickets 7
Tickets to a concert cost $2 for children, $3 for teenagers and $5 for adults. When 570 people attended the concert, the total ticket receipts were $1950. Compared to the number of children in attendance, three-fourths as many teenagers attended. How many
- The Fraction
The denominator of a Fraction is greater than the numerator by 4. if 11 is added to the numerator and 1 subtracted from the denominator, the value of the fraction obtained is 7/3. What is the original fraction?
- The sum
The sum of two numbers is 69 and the difference is 11. Which numbers are they?
- GP sequence
Find the remaining unknown characteristics in the finite geometric sequence, if given: a1 = 5, an = 320, sn = 635, n =?, q =?
A geometric sequence with six members has the sum of all six members equal to 63; the sum of the even members (that has even index) has a value of 42. Find these members.
- Linear temp change
The temperature in Inuvik, Northwest Territories, increased at the same rate from -22°C at 9:00 AM to -8°C at 4:00 PM one day. What was the temperature at 2:00 PM?
- What is 19
What is the equation of the line whose x - intercept is - 3 and y - intercept is -4? Find coefficients A, B, C in normal line equation: Ax + By = C
- The ratio 7
The ratio of the sides of two squares 4:5 if the sum of their areas is 180 cm² Find the sides of the two squares.
- Find two 2
Find two decimals between 4.56 and 6.927 so that the difference between any two consecutive decimals is the same.
Grandma is 57 years older than her two twin granddaughters. If we add the ages of an old woman with both granddaughters, we get the number 99. How old is her old woman?
- The tourist
The tourist will cross a 5 km long section in 3 hours. Part of the journey goes at a speed of 0.8 m/s and the other part at a speed of 0.4 m/s. Find the length of the first and second part of the journey.
- What is 16
What is the sum of three consecutive even integers such that six more than twice the second is 2/3 of the first increased by 3/2 of the third?
- I bought
I bought 2 bottle of alcohol and 2 sanitizer for 126 pesos. How much is a bottle of alcohol if the costs of alcohol is five times the costs of sanitizer?
- Rabbits and chicken
There are rabbits and chicken at a farm, 41 heads and 132 legs in all. How many rabbits at the farm?
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