<span>D.
p + 6.25p = 31.86</span>
The answer is negative 80 or like this -80
Answer:
Step-by-step explanation:
<em>Allow me to add more information on your question and hope it will fit with the original one: </em>
<em>what is the probability that it will be:
</em>
<em>a.7?
</em>
<em>b. A black card?
</em>
<em>c. A face card?</em>
Here is my answer:
As we know the total possible outcomes is the total number of cards: 52 a. a. 7?
If we draw 1 card randomly from a standard 52-card playing deck and it is 7 so we have 4 possible outcomes:
=> P(7) = ≈ 0.076
b. A black card?
If we draw 1 card randomly from a standard 52-card playing deck and it is black so we have 26 possible outcomes:
=> P(black card) = = 0.5
c. A face card?
If we draw 1 card randomly from a standard 52-card playing deck and it is a face card so we have: Jacks + Queens + Kings = 4+4+4 =12
=> P (a face card) = ≈0.23
Hope it will find you well.
If f(4a) = 80, then the value of "a" is 4.2
<em><u>Solution:</u></em>
Given that cost for the olive oil used to fill the containers on the tables in an Italian restaurant is given by the function:
f(x) = 5x – 4
where "x" represents the number of quarts of olive oil
f(x) represents the quarts of oil used
To find: value of "a" when f(4a) = 80
Substitute x = 4a in given function
f(4a) = 5(4a) - 4
80 = 20a - 4
20a = 84
10a = 42
a = 4.2
Thus the value of "a" is 4.2