Answer:
Area of a rectangle = Length × width
So ; Length = 2x + 3
I hope I helped you^_^
The system of equations is
n + d = 27
n + 5d = 55
Step-by-step explanation:
The given is:
- Kiran has 27 nickels and quarters in his pocket
- They worth a total of $2.75
- We need to write a system of equations to represent the relationships between the number of nickels n, the number of quarters d, and the dollar amount in this situation
∵ The number of nickles is n
∵ The number of quarters is d
∵ There are 27 nickles and quarters
∴ n + d = 27 ⇒ (1)
∵ 1 nickel = 5 cents
∵ 1 quarter = 25 cents
- Multiply n by 5 and d by 25 to find their value
∴ They worth = 5n + 25d
∵ They worth a total of $2.75
- Chang the dollar to cent
∵ 1 dollar = 100 cents
∴ $2.75 = 2.75 × 100 = 275 cents
- Equate their value by 275
∴ 5n + 25d = 275
- Simplify it by divide each term by 5
∴ n + 5d = 55 ⇒ (2)
The system of equations is
n + d = 27
n + 5d = 55
Learn more:
You can learn more about the system of equations in brainly.com/question/2115716
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Answer:
f(- 3) = 51, g(2) = - 11
Step-by-step explanation:
To evaluate f(- 3), substitute x = - 3 into f(x), that is
f(- 3) = - 2(- 3)³ - 3 = - 2(- 27) - 3 = 54 - 3 = 51
Similarly for g(2)
g(2) = - 5(2) - 1 = - 10 - 1 = - 11
Answer:
o{(8,4), (6,4), (9,1),(7-6)}
Step-by-step explanation:
Every x value can only have one y value
Answer:
I don't know what you are talking about .
Step-by-step explanation:
