Five times the number of test tubes in a school’s chemistry lab exceeds three times the number of beakers it has by 660. the sum of two times the number of test tubes and five times the number of beakers is 450.

if b is the number of beakers and t is the number of test tubes, the system of linear equations representing this situation is ?
the number of beakers in the school’s lab is ?
and the number of test tubes in the school’s lab is?

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x