Answer:
k -= 1
Step-by-step explanation:
We are given with an initial value of water equal to 12 ounces of water and the final value of water is 2 1/4 or 2.25 ounces. Since the two substances are the same, we can use direct subtraction to determine what was consumed after walking. The answer is 12-2.25 equal to 9.75 ounces
Each pink marble is 90 cents. One blue marble is a third the price of a pink marble, and since yang bought 3 times more blue marbles than pink ones, the total prices are equal. Then you account for the difference between the costs. I'm not good at explaining, hope this helped
Eliminate p terms
times 2nd equation by -1
q-2p=-5
add to 2nd equation
q-2p=-5
<u>7q+2p=29 +</u>
8q+0p=24
8q=24
divide both sides by 8
q=3
sub back
2p-q=5
2p-3=5
add 3
2p=8
divide by 2
p=4
p=4
q=3
