Question

Christopher rode his bike 3.15 miles on Friday and then 4.2 miles on Saturday. How many more miles did Christopher bike on Saturday than on Friday? *

1.50
1.15
1.05
Other:

Answer 1

Answer: 1.15 MILES

Step-by-step explanation: As we should subtract 4.2- 3.15 by making it like decimal  = 4.20 - 3.15 = 1.15miles  if you want a statement problem then it  is down below

   

Distance Christopher  rode his bike on Friday = 3.15

Distance he rode his bike on Saturday           = 4.2

Distance he should cover more = 4 .2 - 3.15 =

                                                         4.20 - 3.15 [ making like decimal ]

                                                                 = 1.15 miles

 total distance Christopher should cover more in  Saturday is 1.15 miles

Please mark me the brainleist

Answer 2

Given: Christopher rode his bike 3.15 miles on Friday and 4.2 miles on Saturday.

To find: Difference in distance travelled on Friday and Saturday

Explanation: Distance travelled by Christopher on Friday= 3.15 miles

Distance travelled by Christopher on Saturday= 4.2 miles

But for addition and subtraction of decimal type questions, the number of digits after decimal should be equal. 3.15 has 2 digits after decimal but 4.2 has only 1 digit after decimal. Therefore, 4.2 should also have 2 digits after decimal. Therefore, we write 4.2 as 4.20.

Now, Subtracting 3.15 from 4.20 we get 1.05.

Therefore, Christopher biked 1.05 miles more on Saturday than Friday.