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:
Answers
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
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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.