I only know how to do number 1 so heres the answer 1) 1080
<u>Add</u> them all up, 3.2 + 1.75 + 1.9 = <u>6.85</u>
The total weight is <u>6.85</u> pounds.
Answer:
No, (3, 9) is not a solution of the system.
Step-by-step explanation:
y=3x
2x-y=6
-----------
3(3)=9
2(3)-9=6-9=-3, not 6
The last answer, (40 pieces of paper)
X, y - the numbers
The sum of the two numbers is 9.

If one number is subtracted from the other, the result is 3.

Solve the system of equations:

The numbers are 6 and 3.