Answer: A. 27.5km
2cm = 11km so then.... 1cm = 5.5km
Answer:
8*4+3*3
Step-by-step explanation:
It can't be the last answer because he buys three packs of erasers for three dollars each. It can't be the third answer because you have to multiply to get the price. It can't be the first answer because it's three of the numbers given put together. So it has to be 8*4+3*3
Answer:
There are infinitely many solutions.
Step-by-step explanation:
3x + 2y = 7
-9x - 6y = -21
Now multiply the first equation by 3
3 × 3x + 2y = 7 ➡ 9x + 6y = 21 Now subtract second equation from first equation
9x + 6y - 9x - 6y = 21 - 21
0 = 0
The equation has infinitely many solutions meaning whatever value you write instead of x and y there will be solution.
Answer:
7
Step-by-step explanation:
We can check if it works:
7+(-6) is the same as saying 7-6 which is equal to 1. Therefore, we are correct. Hope I could help!
