A sign reads 8 pounds for 15$ how much will someone have to pay for 10 pounds?
To find out how much someone will have to pay for 10 pounds, we can set up a proportion:
8 pounds is to $15 as 10 pounds is to x dollars.
We can cross multiply and solve for x:
8/15 = 10/x
Cross multiplying:
8x = 15 * 10
8x = 150
Dividing both sides by 8:
x = 150/8
x ≈ 18.75
Therefore, someone will have to pay approximately $18.75 for 10 pounds.