Answer:
The difference in the areas of the cross-sections is 20 m².
Step-by-step explanation:
^^^
10 students (brass)=40% of band
4 students (strings)=16% of band
? students (other)=44% rest of band
14/56%=?/44%
(cross multiply to find ?){don't forget to turn percents into decimals}
?=11
There are 25 students in total in the band.
Answer:
s = 10/9
Step-by-step explanation:
1. add 1/3 to both -1/3 and 7/9
2. the answer will be 10/9
Rounding it to the tens place so your answer for 12mm is going to be 10
