Answer:
42 feet
Step-by-step explanation:
Answer: The answer is (B)
Step-by-step explanation:
It just took the unit test
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
For 3/11 the difference is 8 the sum is 14.the difference of 13/5 is 8 the sum is 18
I think inside the triangle......
