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:
1x>-14
Step-by-step explanation:
-1x-4>10
move constant to right
-1x>10+4
add 10 and 4
-1x>14
move negative sign to other side
1x>-14
According to Wikipedia, "the domain... is the set of "input"... for which the function is defined."
This essentially means the domain is where there is a 'definition' or y value for a function.
For this equation the only y value possible is 0 so the domain is 0 or optionally written as [0,0]
(0, -10) is the correct answer,
Answer:
i don't k
Step-by-step explanation:
