The answer is C) 20°. This is because 73 + 87 = 160, and there are 180° in a triangle so 180 - 160 = 20. I hope this helps!
EFGH is twice the size of ABCD
Answer:
x = 9
y = 6
Step-by-step explanation:
- Divide 15 by 2: 15 ÷ 2 = 7.5
- Subtract 0.5 from 7.5 (this will later be added back): 7.5 - 0.5 = 7
- Subtract 1 from 7 (she wants to buy at least 2 more children books): 7 - 1 = 6
- Subtract 6 from 15 (6 being the number of puzzle books, 15 being the total number of items): 15 - 6 = 9 (number of children books)
An infinite number of pairs of whole numbers have a sum of 40.
Answer:
C
Step-by-step explanation:
When we speak about the least common multiple, we are talking about the lowest number in which these given values are a factor of
Firstly, I would like to consider the number parts only I.e 3, 12 and 15. Using the long division l.c.m method, the lowest common multiple of these is 60.
In the options, there are two options carrying 60. How do we know which is correct? We simply look at the alphabets and try the long division again.
The highest powers of x and y is the 3rd power and hence gives their lowest common multiple.
Please check the attachment for the long division.