Answer:
10
Step-by-step explanation:
1x2x2.5=5
5/0.5=10
X=3 and y=-5/2. Here is why, when we do 7x+5x that gives us 12x. -2y+2y=0 and then we have 16 plus 20 which gives us 36. Now we gotta isolate x which right now we have 12x=36. Therefore divide by 12 to get x alone, which 36 divided by 12 is equal to 3. X=3. Plug it back into the equation, 7(3)=21 plus 2y=16. Subtract 21 from both sides 16-21 is equal to -5. Then 2y=-5 divide by 2 on both sides you will have -5/2=y or y=-5/2. Hope this helps!
The answer is 5! Like if you have 3 cookies then add two you would have .. 5! (: any other questions you need help with?
Answer:
Number 2: 126
Number 3: 128
Number 4: 75
Number 5: 204
Step-by-step explanation:
