Write a proportion for each phrase, then solve.
3 oz for $1.65;5 oz for x dollars
3/1.65 = 5/x
To write the proportion, we need to compare the ounces to the dollars.
Let y represent the amount in dollars for 5 ounces.
So, the proportion can be written as:
3 oz / $1.65 = 5 oz / y
To solve for y, we can cross-multiply and solve for y.
3(x) = 5(1.65)
3x = 8.25
Dividing both sides by 3, we get:
x = 8.25 / 3
This simplifies to:
x ≈ 2.75
So, the amount in dollars for 5 ounces is approximately $2.75.
To write a proportion, we need to set up a ratio of the two quantities that are being compared. In this case, we are comparing the cost of 3 oz (which is $1.65) to the cost of 5 oz (which is x dollars).
So, the proportion can be written as:
3 oz / $1.65 = 5 oz / x
To solve for x, we can cross-multiply and then solve for x.
Cross-multiplying gives us:
3 oz * x = 5 oz * $1.65
We can simplify this by multiplying the numbers:
3x oz = 8.25 oz
Now, we can solve for x by dividing both sides of the equation by 3:
x = 8.25 oz / 3 oz
x = 2.75
Therefore, the cost of 5 oz is $2.75.