Answer:
Peter's number is 36.
Step-by-step explanation:
If you subtratct 13 from 36, you get 23.
If you multiply that times -3, you get -69.
(The way I got 23 was by dividing -69 and -3)
I hope this helped you even though it's late.
Answer: 2m/s
Step-by-step explanation:
The boat goes twice as fast down the river, which means it goes twice as slow up the river.
Because the river flows at 2m/s, I think the answer is 2m/s
Answer:
(2, 18) or x = 2 and y = 18
Step-by-step explanation:
From substitution:
9x = 3x + 12
6x = 12
x = 2
y = 9x = 9 * 2 = 18
