Answer:
<em>Answer: A'Reana's weekly allowance is $100</em>
Step-by-step explanation:
<u>Backward Solution</u>
To solve some problems, we can work backward, using the inverse operations, to arrive at the solution.
The problem explains a sequence of expenses A'Reana does with her weekly allowance. In the end, she had $37.50.
That final balance came when she last spent $7.50 on a pizza. Thus, before that, she had $37.50+$7.50=$45
This balance is half of her previously remaining money. The other half was spent on a new shirt. Thus she had 2*$45=$90.
Those $90 were left after she gave $10 to her friend Taylor, thus, the initial money was $90+$10 = $100
Answer: A'Reana's weekly allowance is $100
To distribute the 2/3, this is what you do.
2/3[8(5-2)^2 + 3*2] = (2/3)(8)(5-2)^2 + (2/3)(3*2) =
Now you can continue. You need to follow the correct order of operations.
= (2/3)(8)(3^2) + (2/3)(6)
= (2/3)(8)(9) + 4
= (2/3)(9)(8) + 4
= (6)(8) + 4
= 48 + 4
= 52
This is how I would have done it.
2/3[8(5-2)^2 + 3*2] =
= 2/3[8(3)^2 + 6]
= 2/3[8 * 9 + 6]
= 2/3[72 + 6]
= 2/3[78]
= 2 * 1/3(78)
= 2 * 26
= 52
Answer:
(x, y) = (1.89, 0.59)
Step-by-step explanation:
Written in general form, the equations are ...
4x +5y -10.51 = 0
3x +8y -10.39 = 0
These can be solved using the cross-multiplication method to find ...
∆1 = (4)(8) -(3)(5) = 17
∆2 = (5)(-10.39) -(8)(-10.51) = 32.13
∆3 = (-10.51)(3) -(-10.39)(4) = 10.03
Then the values of the variables are ...
x = ∆2/∆1 = 32.13/17 = 1.89
y = ∆3/∆1 = 10.03/17 = 0.59
The solution is (x, y) = (1.89, 0.59).
Answer:
The answer to your questin is: V = 5276.7 cm³
Step-by-step explanation:
Data
radius = 10.8 cm
Volume = ?
Formula
V = 5276.7 cm³
If I understood your post correctly, then this will be the equation we evaluate: (6-2)!
We can simplify this to: 4!
4! = 4 x 3 x 2 x 1 = 24
