need to check answers please
9/11-3/11+7/11=13/11=1 2/11 evaluate then to lowest form
One task took 7 minutes (min), a second task took 12 min, and
a third task took 21 min. How long did the three tasks take, as a fraction of an
hour?2/3
find perimeter of triangle 3/8 then other side 3/8 other side 3/8 = 1 1/8
correct; correct; correct. Go to the head of the class.
thanks!
To check the first problem:
9/11 - 3/11 + 7/11 = (9 - 3 + 7)/11 = 13/11
To evaluate it in its lowest form, you need to simplify the fraction:
13/11 can be simplified by dividing both the numerator and denominator by their greatest common divisor, which is 1 in this case because 13 and 11 are prime numbers and do not have any common factors.
Therefore, the fraction in its simplest form is 13/11.
To solve the second problem:
The total time for the three tasks is the sum of the individual task times.
7 minutes + 12 minutes + 21 minutes = 40 minutes.
To express this as a fraction of an hour, divide the total minutes by 60 (the number of minutes in an hour).
40 minutes / 60 minutes = 2/3.
Therefore, the three tasks took 2/3 of an hour.
To find the perimeter of a triangle:
If the lengths of the sides of the triangle are given as 3/8, 3/8, and 3/8, you can simply add the lengths of the sides to find the perimeter.
3/8 + 3/8 + 3/8 = 9/8.
To express this as a mixed number (a whole number and a fraction), divide the numerator (9) by the denominator (8).
9/8 = 1 1/8.
Therefore, the perimeter of the triangle is 1 1/8.