The sum of two intergers is 9. Their difference is 5. What are the two intergers?

x + y = 9

x - y = 2

x = 5 + y

5 + y + y = 9

5 + 2y = 9

2y = 9 - 5

2y = 4

y = 2

x = 9 - 2

x = 7

Step-by-step explanation:

19.2 grams of medicine should be received by 120 pound woman

Step-by-step explanation:

150 pound woman receive medicine = 24 grams, we need to find how many grams of medicine should 120 pound women receive?

Solution:

150 pound woman receive medicine = 24 grams

1 pound woman receive medicine = 24 /150

120 pound woman receive medicine = (24 /150) * 120 = 19.2 grams.

So, 19.2 grams of medicine should be received by 120 pound woman.