Answer: 40 tickets.
Step-by-step explanation:
Let's call:
x: the number of child tickets sold that day.
y: the number of adult tickets sold that day.
Based on the information given in the problem, you can make the following system of equations:
You must use the method of substitution to solve the system of equations:
Substitute y=3x into the second equation and solve for x:
Then the answer is: 40 tickets.
The answer is <span>b.12
</span>
According to the Pythagorean theorem the square of the hypotenuse (c) is the sum of the squares of the legs (a and b):
c² = a² + b²
We have:
a = 3x
b = 15
c = 3x + 3
Now, let's replace these parameters:
c² = a² + b²
(3x + 3)² = (3x)² + 15²
(3x)² + 2 * 3x * 3 + 3² = 9x² + 225
9x² + 18x + 9 = 9x² + 225
Rearrange:
9x² - 9x² + 18x = 225 - 9
18x = 216
x = 216 / 18 = 12
Answer and explanation:
Given : At Tech Express, 40% of the customers purchases small coffee and 60% purchases medium. Of those customers purchasing small coffee, 30% prefer decaf. Of those purchasing medium coffee, 50% prefer decaf.
Let customer purchase small coffee.
i.e.
customer purchase medium coffee.
i.e.
Let B be the customer purchase prefer decaf.
So,
(a) What is the probability that the next customer will request medium and decaf coffee?
i.e.
(b) What is the probability that the next customer prefers decaf?
i.e.
(c) If the next customer prefers decaf, what is the probability that small is requested?
i.e.
y = x^2 - 3x - 4
Factored Form: y = (x - 4)(x + 1)
X-Intercepts: (4,0) and (-1,0)
Axis of Symmetry: x = 1.5
Vertex: (1.5, -6.25)
Domain: All real numbers
Range: y > -6.25
Hope this helps!
Answer:
B) False
Step-by-step explanation:
3 tacos for $9 are $3 per taco and 4 tacos for $11.99 are 2.99 for each taco.