Evaluate the expression when a = 4 and b=6.
b+7a

34

Step-by-step explanation:

b+7a

Let a=4 and b=6

6+7(4)

6+28

34

Step-by-step

6 + 7 4

6 + 28

34

answer: b.48 for

step-by-step explanation:

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