7 gallons of pure acid and 14 gallons of 10% acid
Answer:
x=2, y=1
x=-2, y = -1
Step-by-step explanation:
x - 2y = 0
x = 2y
x² - y² = 3
(2y)² - y² = 3
3y² = 3
y² = 1
y = 1 or y = - 1
x = 2 or x = -2
Answer:
The smaller number equals 12, the larger number equals 51.
Step-by-step explanation:
x + (3x + 15) = 63
Combine like terms.
4x + 15 = 63
Subtract 15 from both sides.
4x + (15 -15) = (63 - 15)
4x = 48
Divide both sides by 4.
4x/4 = 48/4
x = 12
Check answer.
12 + (3(12) + 15) = 63
12 + 36 + 15 = 63
63 = 63
Answer:
What diagram?
Step-by-step explanation:
Answer:
1. $18.75
2.$83.75
3. Individuals should spend up to only %50 of their medium-term savings then build savings back up.
4. Permanent life insurance policies insure policy holders for as long as they pay a premium.
5. She saves $84 (here is the link with the work brainly.com/question/12276113)
Step-by-step explanation:
Just took it and got all the multiple choices right.
have a good day :)
