The answer is 10 pairs of shoes.
The first ratio is 10:5. 10 socks per 5 pairs of shoes. You have 20 socks now instead of 10. You just double the ratio. 20 socks per 10 pairs of shoes. 20:10.
ANSWER
EXPLANATION
From the Pascal's triangle,
The coefficients are :
1, 5, 10,10, 5,1
Because of the negative sign, the expansion will alternate sign.
We now put y=5 into the expansion to get,
Answer:
532m^2
Step-by-step explanation:
Please see the attached pictures for full solution.
Answer:
212.5 miles on 25 gallons.
Step-by-step explanation:
Set up a proportion
85 miles on 10 gallons
x miles on 25 gallons.
85/10 = x / 25 Multiply both sides by 25
85*25 / 10 = x Simplify the left
2125 / 10 = x
x = 212.5 miles in 25 gallons.
<span>x(2x-2)
distribute the x to get our answer of
2x^2-2x
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