Answer:
4, his answer was way off... idk if this is right but I tried
Step-by-step explanation:
s= √21d
42=√21d
42/21=√d
2=√d
4=d
235.5 cm3
B.
471 cm3
C.
1177.5 cm3
D.
4710 cm3
Using the distance formula, we can find the distance between these two points.
√(12 + 4)^2 + (-9 - 6)^2
√16^2 + (-15)^2
√481 (this is your answer.)
The fraction of the pie given to his friend is
The leftover given to his friends will be determined by adding the portion Christine and her brother ate which are and respectively, then subtracted from the whole portion.
= + (The lowest common denominator of 6 and 3 = 6)
= (1 x 1) + (2 x 1) /6
= (1) + (2) / 6
= 1 + 2 / 6
=
Thus, total portion of the pie eaten by Christine and her brother = . Also the fraction of the whole portion of the pie =
Determining the portion given to the friend =
Subtracting –
= – (The lowest common denominator of 6 and 6 = 6)
= (1 x 6) – (1 x 3) / 6
= (6) – (3) / 6
= 6 – 3 / 6
=
= (further broken down to this)
Therefore the fraction given to the friend is .
The above mathematical problem is a typical fraction problem which was solved with the aid of some order of operations called BODMAS.
BODMAS simply means Brackets, Of, Division, Multiplication, Addition, Subtraction.
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Answer:
25 and 15
You can easily make a system of equations:
x + y = 40
x - y = 10
Solving for x on equation 2 gets x = 10 + y.
Plugging in this into the first equation, you get 10 + y + y = 40
Thus, 10 + 2y = 40
y = 15.
Plugging this back into either equation gets x = 25.