Y coordinate on solving both equations comes out to be 0
-2x+3y=-6
3y = -6+2x
put the value of 3y in equation 2nd
5x-2(-6+2x) =15
5x+12-4x = 15
x=3
put value of X in 3y = -6+2x
3y = -6+2*3 = -6+6 = 0
thus y = 0
The correct answer is ( a . )
Answer:
9 nickles
15 dimes
21 quarters
Step-by-step explanation:
Number of nickels = N
Number of dimes = D
Number of quarters = Q
The following system can be modeled based of the given information:
Solving the system:
The collection consists of 9 nickels, 15 dimes and 21 quarters.
Hello There!
23 + 3 = 26
26 + 5 = 31
31 - 2 = 29
29 + 5 = 34
34 + 3 = 37
37 - 1 = 36
36 + 1 = 37
37 + 33 = 70
70 is your answer!
22 + 22 = 44
44 + 22 = 66
66 + 4 = 70
70 + 5 = 75
75 + 4 = 79
79 - 2 = 77
77 is your answer!
Hope this helped!
Total purchase = (unit cost)(# of pounds purchased)
Here, that total is ($0.98/lb)(3.5 lb) = $3.43 (answer)