21. Find the unit rate ($ per fl oz). Compare the two prices.
22. Multiply 2 3/5 by 7, and 5 3/4 by 4. Add those together and get the answer.
Hope that helps!
3x - 4y = 7
-(3x + 2y = -5)
= 0 - 6y = 12
-6y = 12
y = -2
The resulting equation would be y = -2.
Answer:
3.5 cm
Step-by-step explanation:
2.5 is half of 5 so you divide 7 by 2 and you get 3.5
X^2/2 = 5x-17/1 solve by cross multiplying. You come up with
x^2 = 2(5x - 17)
x^2 = 10x - 17
x^2 - 10x + 17 = 0
