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
2x1=2
2+1=3/2
=3/2 is the answer
Answer:
Step-by-step explanation:
Me no hablas Inglish sorry pal
Answer:
K = 3
Step-by-step explanation:
<em>-11.K </em><em>=</em><em> </em><em>-</em><em>3</em><em>3</em>
<em>K </em><em>=</em><em> </em><em>-</em><em>3</em><em>3</em><em>/</em><em>-</em><em>1</em><em>1</em>
<em>K </em><em>=</em><em> </em><em>3</em><em> </em>
<em>.</em>
<em>.</em>
<em>.</em>
<em>Hope </em><em>it </em><em>helps</em>
Answer:
Hello! answer B
What I did was concert them to percents so
1/8 is 12.5%
1/4 is 25%
1/2 is 50% so this clearly goes from least to greatest. Hope that helps!