x + 2y = 4
2x - 2y = 5
Adding both the equations:
x + 2y + 2x - 2y = 9
3x = 9
x = 3
y = 4-x /2 = 1/2
If you are looking to round, then you simply either round up or round down due to the term before the place you want to round (in this case, the thousands place). when you round in this case, you would round down because 4 is less than 5 (the middle point between 0 and 10) in which case would give us 60,000
Answer:
2, 400
Step-by-step explanation:
1) 25 times 40 for how many miles the shark has done, which is 1,000
2) Do 1000 divided by 25, which is 40, so 40 hours.
3) Do 40 times 60 for how many minutes the shark has swam, which is 2, 400.
Answer:
B. 1 and 8
Step-by-step explanation:
