Hi!
So we have to make a system of equations here.
Let sibling 1 be O and sibling 2 be Y (for older and younger)
So:
O + Y = 64
O = 64 - Y
(Either one works)
The older sibling is 6 years older.
O = Y + 6
Make everything in terms of Y.
64 - Y = Y + 6
Same to both:
58 = 2y
2y = 58
Divide by 2 on both sides:
y = 29
Since the older sibling is 6 years older:
29 + 6 = 35
Y = 29
O = 35
Let me know if you have any questions.
Answer:
Part A: 0
Part B: (-1,-1) since point (-1,1) is located in quadrent four when it is reflected over the y axis the second point would be located in quadrent three and the x and y would both be negative.
Step-by-step explanation:
Answer:
a. x = 5/2
b. y = 16.5
c. z = 12
Step-by-step explanation:
7x - 4y = -28
3x +4y = -12
Using the elimination method because y is already eliminated
10x = -40
So x = -4
Then plug the -4 into the first equation....
7(-4) - 4y = -28
-28 - 4y = -28
-4y = 0
y = 0
I got: -4,0
Volume sphere A V1 = (4/3)πR³
R=∛((3/4)V1/π)
Volume sphere B V2= (4/3)πr³
r=∛((3/4)V2/π)
R-r = ∛((3/4)40/π) - ∛((3/4)10/π) ≈ 0.8 inch
Answer C. 0.8 inch.
