Question

Would each situation be represented by a positive or a negative number?
Column A Column B
1.
1.5 acres of rainforest are destroyed every second for s seconds. Express the change in acreage of rainforest.
2.
A tub of water is heated by 0.3 degrees per minute for m minutes. Express the change in temperature.
3.
A submarine descends at a rate of 0.9 m/s for 90 s. Express the change in altitude relative to sea level.
4.
A credit card account has 2 charges of $15 and no payments. Express the balance of the credit card.

Answer 1

Column B
a.positive b.negative

Answer 2

@Mikey312

Answer 3

@They_Call_Me_Narii

Answer 4

Ok let me see what I go here

Answer 5

k

Answer 6

change in acreage = Initial acreage - (1.5)*s

Answer 7

change in temp = initial temp + (0.3)*m

Answer 8

change Altitude = -(0.9 m/sec)(90sec)

Answer 9

So... 1. Neg 2. Pos 3. Neg 4. Neg

Answer 10

so 1. gos with b and 2. gos with a

Answer 11

Yes