Question

Ms. Maryna has 10 lbs of 25% sugar syrup. How much sugar does she need to add to make 40% sugar syrup?

Answer 1

Answer:

2.5 Lb

Step-by-step explanation:

25% of 10=2.5

2/5(10+x)

2.5+x

x=2.5

2.5

Answer 2

We can solve this problem by setting up a proportion. When creating the proportion it is important to keep the units aligned. Our proportion would look like this: 

$\frac{10}{25} = \frac{x}{40}$

We are looking for x, the amount of sugar she needs with 40% sugar syrup. To solve, we can cross multiply and divide. We cross multiply 10 x 40, then divide by 25: 

10 x 40 = 400
400/25 = 16

Ms. Maryna needs 16 lbs of sugar to make 40% sugar syrup.