Answer:
Caleb's percent of increase from the first test to the second test is:
50%
Step-by-step explanation:
Caleb scored 60 on his first math test.
For the next test he earned a score of 90.
Percentage increase=[tex]\dfrac{score\ in\ second\ test-score\ in\ first\ test}{score\ in\ first\ test}\times 100[/tex]
Percentage increase=[tex]\dfrac{90-60}{60}\times 100[/tex]
Percentage increase=[tex]\dfrac{30}{60}\times 100[/tex]
Percentage increase=[tex]\dfrac{1}{2}\times 100[/tex]
Percentage increase=50%
Hence, Caleb's percent of increase from the first test to the second test is:
50%
