Find the least common denominator for the set of rational expressions. a) 5y & x/7y
Write each expression in terms of the LCD.
b) 5y=?
c) x/7y=?

Find the least common denominator for the set of rational expressions.
a) 11a/15b^2c & 14b/25ac^3
Write each expression in terms of the LCD.
b) 11a/15b^2c
c) 14b/25ac^3

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

(1 km=1000m, 1m=100 cm)