Question

PLEASE HELP WILL MEDAL

An ant colony started off with a total of 300 ants. After the ants began to leave the colony, there were 250 ants left after 2 minutes. Using this information, how can you describe the rate of change in the number of ants in the colony per minute?
an increase of 25 ants per minute


a decrease of 25 ants per minute


an increase of 50 ants per minute


a decrease of 50 ants per minute

Given that a car can drive 84 miles with 4 gallons of gasoline, how many gallons does it need to drive 189 miles?

5 gallons


7 gallons


9 gallons

Answer 1

11 gallons

Answer 2

On the first one, how many ants left in the first 2 minutes? Since it was 2 minutes, you will take that answer and divide by 2 to get how many ants left per minute.

Answer 3

250, so 125?

Answer 4

There were 250 ants left, so 300 - 250 = 50 ants left.

Answer 5

Oh okay, so is it C ?

Answer 6

If 50 ants left in 2 minutes, then you have to divide 50/2.

Answer 7

If there were 300 ants and 50 left, did the number increase or decrease?

Answer 8

Decrease.. ohhh so it's D?

Answer 9

No, you didn't divide 50 by 2.

Answer 10

Okay I did now, so it's B then?

Answer 11

Yes

Answer 12

Yaay

Answer 13

A car can drive 84 miles on 4 gallons, so to figure out how many miles per gallon the car gets by dividing 84/4.

Answer 14

21

Answer 15

Okay, so now in order to find out how many gallons it will take to go 189 miles, you will divide 189 miles by 21 miles per gallon.

Answer 16

9! So It's 9 gallons? :D

Answer 17

Yes

Answer 18

Yay Thank you so much

Answer 19

It's C though

Answer 20

Yup, got it

Answer 21

Oops... I thought you were saying D, but that must have been a smiley.

Answer 22

TY

Answer 23

Np! And yeah it's a smiley

Answer 24

its c