Math Quiz 7b Lina A Diaz

A school has 10 classes with the same number of students in each class. One day, the weather was bad and many students were absent. 5 classes were half full, 3 classes were 3/4 full and 2 classes were 1/8 empty. A total of 70 students were absent. How many students are in this school when no students are absent?

Math Quiz Lina A Diaz Two balls A and B rotate along a circular track. Ball A makes 4 full rotations in 120 seconds. Ball B makes 3 full rotation in 60 seconds. If they start rotating now from the same point, when will they be at the same starting point again?

Linda spent 3/4 of her savings on furniture. She then spent 1/2 of her remaining savings on a fridge. If the fridge cost her $150, what were her original savings? $1200 $1300 $2000 1234567814151 Created with Quiz Maker

Carla is 5 years old and Jim is 13 years younger than Peter. One year ago, Peter's age was twice the sum of Carla's & Jim's age. Find the present age of each one of them

Solve (3a - 6b + 5c) - (-2a + 4b - 8c)

In a bag of small balls 1/4 are green, 1/8 are blue, 1/12 are yellow and the remaining 26 white. How many balls are blue?

In a school 50% of the students are younger than 10, 1/20 are 10 years old and 1/10 are older than 10 but younger than 12, the remaining 70 students are 12 years or older. How many students are 10 years old?

Linda spent 3/4 of her savings on furniture and the rest on a TV. If the TV cost her $200, what were her original savings?

Two numbers N and 16 have LCM = 48 and GCF = 8. Find N

Tanya is older than Eric. Cliff is older than Tanya. Eric is older than Cliff. If the first two statements are true, the third statement is

Solve the equation 2x + 6 = 9

Solve the equation 2x + 2 = 48

Solve (4c + 6y + 10x)+(4c + 4y + 11x)

If Andres had 20 candys and lost 15 How many candys has now?

A school committee consists of 2 teachers and 4 students. The number of different committees that can be formed from 5 teachers and 10 students is

The exam scores of all 500 students were recorded and it was determined that these scores were normally distributed. If Jane's score is 0.8 standard deviation above the mean, then how many, to the nearest unit, students scored above Jane?

Solve 2(3x - 7) + 4 (3 x + 2) = 6 (5 x + 9 ) + 3

Solve 5x - 6 = 3x - 8

A painter charges $ 225 for materials and $ 35 per hour for labour. The total cost of painting an office is $ 330. How many hours did it take the painter to paint the office?

Solve 3+x=5