I have no idea what did he do
3x + y = 10 >>>>>>
6x + 2y = 20
-4x - 2y = 2
2x = 22
X = 11. Y = -23.
Answer:
91.2 seconds
Step-by-step explanation:
To solve this problem you first have to figure out how many seconds does it take per meter which is .8 seconds. Then you have to multiply it by 114 so that you can get the answer: 91.2 seconds.
If 4 < b < 5, then -4 > -b > -5, or -5 < -b < -4.
Then
3 < a < 4 ==> 3 - 5 < a - b < 4 - 4 ==> -2 < a - b < 0
Loaves sold on the first week=100
Loaves sold on the next=2(100)=200
Total number of loaves=200+100=300
