Each group will have the same number of boys and girls in a group. Find common factors for the number of boys and girls.
6th grade :
64 girls = 8 * 8
72 boys = 8 * 9
There will be 8 groups consisting of 8 girls and 9 boys
7th grade :
81 girls = 9 * 9
63 boys = 9 * 7
There will be 9 groups consisting of 9 girls and 7 boys
8th grade :
68 girls = 4 * 17
60 boys = 4 * 12
There will be 4 groups consisting of 17 girls and 12 boys
Answer:
y= 3+x
Step-by-step explanation:
Total amount of instrument players= 300
Number of brass instrument players= x (because we do not know how many there are, except that all other values that we must calculate are based off of the number of brass players we have
Number of string instruments= 3x (because 3 times more than the number of brass instruments
Number of Percussion= x-60 (because there are 60 less percussion players than brass players
So, our equation is (number of string instruments)+(number of brass instruments)+(number of percussion instruments)=300 (which is our total possible number of people
3x+x+x-60=300
3x+x+x=360
5x=360
x= 72
We have 72 brass instrument players, 3(72)= 216 string instrument players, and 72-60=12 percussion players
check: 72+216+12=300
Answer: 16
Step-by-step explanation: we will do PEMDAS for this. first 6-3= 3 this makes the equation 4+8/2*3
next, 8/2 because of pemdas. this is 4. this makes the equation 4+4*3. nest do 4*3. this is 12. then just add 4 to make 16.
Answer:
4.7 cm
Step-by-step explanation:
= 7 so side length of the square is 7
7 x 4 = 28 so perimeter is 28cm
28 - 9.3 - 9.3 = 9.4
9.4 / 2 = 4.7 cm
