Find, explain, and correct the error in the student work below.

3x - 2x + 10 = 5x + 10

1x + 10 = 5x + 10

-10 - 10

1x = 5x

Contradiction, no solution because 1 = 5

Joe earns $10 per hour babysitting and $5 per hour dog walking. He also earns tips for each job. Last week Joe spent 6 more hours walking dogs than babysitting. He received $5 in tips for babysitting and $10 in tips for dog-walking.

On which of these policies will an insurer pay if there's a loss

Shannon test-drives a car in Germany and drives 95 kilometers per hour. What is her speed in miles per hour? (1 kilometer = 0.62 mile)

The temperature of the ice for an ice hockey match is - 7°C. For ice-skating, the temperature of the ice is 2 degrees warmer. What is the temperature of ice for ice-skating?

Eighty-six million forty thousand

A biker traveled 20 miles in 4 hours. A unit rate to describe this would be 5 miles per hour. What is another unit rate in this situation?

On Monday, a local hamburger shop sold a combined total of 504 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Monday?

How to subtract micro fractions

A rancher has 4000 ft. of fence for constructing a rectangular corral that is divided into 3 equal sections. one side of the corral will be bounded by his barn and needs no fencing.

The graph shows the relationship between the total cost and the number of erasers bought at the student store. Which statement is true?