First find the decimal values of both fractions:
7/10 is 7 divided by 10 so:
= 0.70
3/5 is 3 divided by 5 so:
= 0.60
60 minutes is one hour (since the question said that Lola rides the bike for 7/10 and 3/5 of an hour)
Now we use these to find how many minutes:
To find 0.70 (or 7/10) of 60 minutes, you multiply 60 x 0.70
= 42 minutes on Saturday
To find 0.60 (or 3/5) of 60 minutes, you multiply 60 x 0.60
= 36 minutes on Sunday
Now to find how much longer she rode her bike on Saturday than Sunday, you subtract the two numbers:
42 - 36
= 6
Therefore, Lola rode her bike for 6 minutes more on Saturday than on Sunday.
The easiest way is if it doesn't need to be simplified. Multiply -2.105 by
. You get the fraction
. While this is technically the answer, you can simplify this down to
. Because 421 is a prime number, this can not be simplified any further. Therefore, the solution is
.
.
The answers are:
A= 40°
B= 140°
C=180°
T = 0
isolate the variable
