The average price for gasoline per gallon is $3.562 if last year the average price for gasoline per gallon was $2.810 what is the approximate percent of change

It increased by 78.89%

Step-by-step explanation:

2.810 / 3.562

=0.7889

78.89%

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