Answer:
Step-by-step explanation:
Because 
is being multiplied by S, we can divide from both sides of the equation. This will give us:
÷
But, that looks a bit hectic. Instead of dividing, you can multiply by the reciprocal (which is essentially how to divide fractions). So, instead of ÷, you get:
×
When multiplying fractions, remember you can just multiply straight across-- numerator x numerator, then denominator x denominator.
By doing that, you get the fraction
cannot be simplified any more, so S= is your answer :)
I hope this helps
45% of 40 is 0.45×40=18 girls
if x girls join then 56% of 40+x is 0.56(40+x)=18+x
22.4+0.56x=18+x
put together like terms
4.4=0.44x
<span>x=10 girls joined</span>
Answer:
27/4 or 6 3/4
Step-by-step explanation:
I can't put it in the box because its gonna take to long but it is correct
Answer:
Step 1
Step-by-step explanation:
Step one is incorrect because you need to add 3 but it subtracted.
