Answer:11
Step-by-step explanation:
Boys : girls=7:1
Sum of ratio=7+1=8
Let them number of girls be y
Then they number of boys=y+66
Total number of pupils=y+y+66
Total number of pupils=2y+66
Number of girls=(girls ratio)/(sum of ratio) x (total number of pupils)
y=1/8 x (2y+66)
Cross multiply
y x 8=2y + 66
8y=2y + 66
Collect like terms
8y-2y=66
6y=66
Divide both sides by 6
6y/6=66/6
y=11
The number of girls is 11
Well since the GCF of 6, (6x7)+(6x12) would be the distributive property, which would be 114
The answer will most likely be 56 degrees try that it should be the answer!
Answer:
C) The sample does not accurately represent the population
Answer:
4.05xy-4x+56y+9.23
Step-by-step explanation:
simplify the expression