Answer:
welll there no like answers to give here so i dont know might want to check what you post before you post it
Step-by-step explanation:
Answer:
3is the answer because t
s apply
Step-by-step explanation:
320 has the same value as 32 tens
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
Answer:
57.2
Step-by-step explanation:
Have a great day
