5-10 points
Number three, what is the answer?
Answer:
$ 697.50
Step-by-step explanation:
Given: 7.75% of $9,000,
To find : Calculate .
Solution: we have given that 7.75% of $9,000.
7.75% of $9,000 = .
7.75% of $9,000 =7.75*90.
7.75% of $9,000 = 697.50.
7.75% of $9,000 = $ 697.50
Therefore, $ 697.50
Answer:
697.5
Step-by-step explanation:
to find a percent of the number, you take the decimal version of the percent and multiply
7.75% as a decimal is .0775
.0775 * 9000= 697.5
Answer:
The answer is 0.02
Step-by-step explanation:
Answer:
A. and
Step-by-step explanation:
We have been given a system of equations. We are asked to find the solution of our given system.
Equate both equations:
Split the middle term:
Use zero product property:
Now, we will substitute both values of x, in our given equation to solve for y.
One solution:
2nd solution:
Therefore, option A is the correct choice.
Answer:
A
Step-by-step explanation:
Given the 2 equations
y = x² - 4x + 8 → (1)
y = 2x + 3 → (2)
Since both express y in terms of x we can equate the left sides, that is
x² - 4x + 8 = 2x + 3 ( subtract 2x + 3 from both sides )
x² - 6x + 5 = 0 ← in standard form
(x - 1)(x - 5) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 1 = 0 ⇒ x = 1
x - 5 = 0 ⇒ x = 5
Substitute these values into (2) for corresponding values of y
x = 1 : y = (2 × 1) + 3 = 2 + 3 = 5 ⇒ (1, 5)
x = 5 : y = (2 × 5) + 3 = 10 + 3 = 13 ⇒ (5, 13)
Solutions are (1, 5) and (5, 13)