Final answer:
To find out how many 7th graders are in band, multiply the total number, 245, by 0.40 (the decimal form of 40%). This calculation results in 98 students being in band.
Step-by-step explanation:
Of the 245 7th graders, 40% are in band. To calculate the number of 7th graders in band, we use the following steps:
- Convert the percentage of students in band to a decimal by dividing 40 by 100, which equals 0.40.
- Multiply the total number of 7th graders by the decimal equivalent of the percentage. So, 245 multiplied by 0.40 equals 98.
Therefore, 98 7th graders are in band.