I need a little Help in Maths here:-
7hr 30mins + 42mins = (How Much?)
STEP BY STEP EXPLANATION PLZ!!
Answers
420+30+42
492min
492/60hrs
8hrs 2min
plz mark me brainliest
Answer:
7 hours plus 42 minutes equals 8 hours and 12 minutes.
Step-by-step explanation:
There are two ways to do this. You can either 1) Turn 7 hours and 30 minutes into strictly minutes to add the two numbers, or 2) just add using simple math. Since a step-by-step was asked for, I'll go with 1.
We know that for every hour, there's exactly 60 minutes. To turn all of the 7 hours into minutes, you must use multiplication. 7 × 60 = 420, so there are 420 minutes in 7 hours.
To get the total amount of minutes in 7 hours and 30 minutes, use the answer above to add 30. In other words (or numbers), 420 + 30 is 450, so our first number is 450, while our second is 42.
Next is simple addition again. Since we know 7 hours and 30 minutes = 450 minutes, we can add 42 minutes and 450 minutes to get the total allotment of time. 450 + 42 = 492, so the answer (in minutes) is 492 minutes.
Next is simplifying our answer. Since we know that, in every hour, there are 60 minutes, we can divide 492 by 60 to get the hour count. 492 ÷ 60 = 8. Since we also know that 8 × 60 = 480, we can assume that the answer will have 8 hours and the minutes will the difference between 492 and 480. 492 - 480 = 12, so the final answer is 8 hours and 12 minutes. Hope this helps!