On sunday, sheldon bought 3 and 1/2kg of plant food. he used 1 and 2/3kg on his strawberry plants and used 1/4 kg for his tomato plants . how many kilogramsof plant food did sheldon have left? write one or more equations to show how you reached your answer.

He has 1  7/12kg of plant food left.

Step-by-step explanation:

How much plant food did he use?

1 2/3 + 1/4

5/3 + 1/4

20/12 + 3/12 = 23/12

How much does he have left?

3 1/2 - 23/12

7/2 - 23/12

42/12 - 23/12 = 19/12 = 1 7/12kg left

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6