Answer:
below in bold
Step-by-step explanation:
f(x) = 2x - 7 - 3
~Combine like terms
f(x) = 2x - 10
When x = 2...
f(x) = 2(2) - 10
f(x) = 4 - 10
f(x) = -6
When x = 3...
f(x) = 2(3) - 10
f(x) = 6 - 10
f(x) = -4
When x = 4...
f(x) = 2(4) - 10
f(x) = 8 - 10
f(x) = -2
Best of Luck!
Answer:
2 1/3 cups of flour for every dozen muffins
Step-by-step explanation:
1 1/2 dozen muffins equals 3 1/2 cups of flour which is also the same as 7/2 cups of flour. I know that (3) 1/2 dozen equals 1 1/2 dozen so I divided 7/2 by 3 which is 1 1/6 to get how much flour for 1/2 dozen then multiplied it by 2 to get how much flour in a dozen = 2 2/6 which simplified is 2 1/3.
Answer:
210
Step-by-step explanation:
Lets use BEDMAS (Brackets, Exponents, Division, Multiplication, Addition, Subtraction)
45 ÷ 2 = 22.5
22.5 × 8 = 180
180 - 12 = 168
168 + 42 = 210
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Have a great summer :)
Answer:
b) (5, -3)
Step-by-step explanation:
The given equations are;
![y=x-8...(1)](https://tex.z-dn.net/?f=y%3Dx-8...%281%29)
![2x+3y=1...(2)](https://tex.z-dn.net/?f=2x%2B3y%3D1...%282%29)
I prefer using substitution because of the first equation.
Put equation (1) into equation (2) to obtain;
![2x+3(x-8)=1](https://tex.z-dn.net/?f=2x%2B3%28x-8%29%3D1)
We expand the parenthesis to obtain;
![2x+3x-24=1](https://tex.z-dn.net/?f=2x%2B3x-24%3D1)
Group similar terms to get;
![2x+3x=1+24](https://tex.z-dn.net/?f=2x%2B3x%3D1%2B24)
Simplify
![5x=25](https://tex.z-dn.net/?f=5x%3D25)
Divide through by 5;
![x=\frac{25}{5}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B25%7D%7B5%7D)
![\Rightarrow x=5](https://tex.z-dn.net/?f=%5CRightarrow%20x%3D5)
Put
into equation (1) to get;
![y=5-8](https://tex.z-dn.net/?f=y%3D5-8)
![\Rightarrow y=-3](https://tex.z-dn.net/?f=%5CRightarrow%20y%3D-3)
The solution is (5,-3).
The correct answer is B