Answer:
2y
Step-by-step explanation:
Simplifying
21x + -42y = 0
Solving
21x + -42y = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '42y' to each side of the equation.
21x + -42y + 42y = 0 + 42y
Combine like terms: -42y + 42y = 0
21x + 0 = 0 + 42y
21x = 0 + 42y
Remove the zero:
21x = 42y
Divide each side by '21'.
x = 2y
Simplifying
x = 2y
Answer:
What is 35 percent off 120 dollars?
Step-by-step explanation:
Thus, a product that normally costs $120 with a 35 percent discount will cost you $78.00, and you saved $42.00. You can also calculate how much you save by simply moving the period in 35.00 percent two spaces to the left, and then multiply the result by $120 as follows: $120 x . 35 = $42.00 savings.
Hope I <em><u>Helped!</u></em> :D
Answer: 5 pounds of ground beef ( don't see second :-( )
Step-by-step explanation: I found the unit rate per pound ( 2.25 ) and then multiplied that by the other pounds to compare the two prices and I only found 5 pounds to be incorrect, but I'll keep digging, hope this helps!
Answer:
Step-by-step explanation: The restocking fee (P) is 5 percent of the total cost of the item (C) that was purchased. 5% can be expressed as .05 for the equation.
so, P = .05C
