Answer:
46
Step-by-step explanation:
all triangles add up to 180 degrees
add up the degrees that are given
83+51=134
SUBTRACT 134 from 180 which would be 46
add up all the degrees and they should add up to 180 to double check your work!
What is your base and height once you have that multiply them together you divide .5 or 1/2
Answer:
13
Step-by-step explanation:
This problem is an example of pigeonhole principle which states that If n+ 1 objects are placed into n boxes, then some box contains at least 2 objects.
Here no. of months in a year are boxes n = 12.
Therefore number of objects( people) = n+1= 13.
Then,at least two people in the group whose birthdays fall in the same month.
Answer:
4(5c-2d)
Explanation:
4 times 5c equals 20c
4 times -2d equals -8d
Answer:
24 / 7
Step-by-step explanation:
y - 4(2y - 5) = -4
y - 8y + 20 = -4
-7y = -24
7y = 24
y = 24/7,
y = 3 and 3/7
or
y = 3.428571 all recurring
(they are all the same value in different forms I would just write 24/7)