Gillian started to find 888-291. this is what she did. 888 - 291 = ? 888 - 300 = 588 what should gillian do next?

597

Step-by-step explanation:

888 - 291 = ?

888 - 300 = 588

Subtracting 300 is 9 too many, so Gillian should add 9 back

588+9 = 597

So we start with 888 -291.

Gillian does 888 - 300 = 588. so what she did there is round the 291 up to 300.

So the next steph would be make 588 - 9 = 581.

A better way to write this is

888 - 291 = 888 - 291 + 9- 9 = 888 - 300 -9 = 581.

In this equations always is useful to round up or down some number so its more easy the equation, en then subtract or sum the correspondent number.

.24

step-by-step explanation:

the probability is   .24

the first player had the highest probability of getting a silver marble

the game could be made fair by adding back the marble that was drawn after each draw

n=9

step-by-step explanation:

7 times a number = 7n

decreased by 13 = 7n-13

same as is =

5 times the number = 5n

increased by 5 = 5n+5

7n-13 = 5n+5

2n=18

n=9