Answer:
1/2.
Step-by-step explanation:
the slope of a line perpendicular to another is the reciprocal of the original lines slope.
The answer is 3 7/21 or 3 1/3 (i don't see the answer choice)
multiplying a number by 1 doesn't change its value so the final answer is still 3 and 1/3.
1/4 an hour is 60 divided by 4 times 1 which is 15 minutes.
3/5 an hour is 60 divided by 5 times 3 which is 36 minutes.
15 plus 36 equals 51 minutes which is less than 1 hour.
Well, the rule of rounding is: if the number is higher than 5, or 5, you round up, and if it is lower than 5, you round down. 5 gets rounded up, so that makes 7 and eight, and eight is higher than 5 so it also gets rounded up, so that would be 6,322. If the decimals were lower, than you would have gotten 6,320, but we rounded up, so 6,322 is the correct answer. Did this help?