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3 years ago

Please hurryyyy help me with this

Mathematics

1 answer:

Verizon [17]3 years ago

6 0

A) The peak of the curve has coordinates (3, 45). Thus the maximum is 45 hundred dollars. It occurs when 3 hundred dollars are spent on advertisiing.
The maximum possible monthly profit of the shop is about $4500.

b) The x interval over which P(x) is greater than zero appears to be 0 to 10 hundred dollars. What is not clear from the question is whether the expected answer is (0, 10) or (0, 1000).

c) The maximum profit is earned when $300 is spent on advertising.

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How do you know that 8 over 10 and 48 over 60 are equivalent

beks73 [17]

8/10 and 48/60 are equivalent because you can see the 48/60 can divide by 8/10 is 6, you just have to see if the larger fraction can divide the smaller one.

3 0

4 years ago

Read 2 more answers

Which expression shows 56x+40y-48z written as a product of the greatest common factor and one other factor

AVprozaik [17]

Answer:

Step-by-step explanation:

You have not provided the choices.

Factor each term into powers of primes and variables:

56x = 2³·7x

40y = 2³·5y

48z = 2⁴·3z

Greatest common factor = 2³ = 8

56x + 40y - 48z = 8(7x + 5y - 6z)

8 0

3 years ago

British and American spelling are `rigour' and `rigor', respectively. A man staying at a Parisian hotel writes this word, and a

Andrews [41]

Answer:

45.45%

Step-by-step explanation:

Given:

British spelling as "rigour"

here Probability of selecting vowel , P(V/B) = $\frac{\textup{Number of vowels}}{\textup{Total letters}}$

Probability of selecting vowel , P(V/B) = $\frac{\textup{3}}{\textup{6}}$ = 0.5

and,

American spelling as "rigor"

here Probability of selecting vowel , P(V/A) = $\frac{\textup{Number of vowels}}{\textup{Total letters}}$

Probability of selecting vowel , P(V/A) = $\frac{\textup{2}}{\textup{5}}$ = 0.4

Probability of English-speaking men at hotel are British P(B) = 40% = 0.4

Probability of English-speaking men at hotel are American P(A) = 60% = 0.6

Now using Baye's theorem

the probability that the writer is British P(B/V) = $\frac{P(B)\times P(V/E)}{P(B)\times P(V/E)+P(A)\times P(V/A)}$

the probability that the writer is British P(B/V) = $\frac{0.4\times0.5}{0.4\times0.5+0.6\times0.4}$

the probability that the writer is British P(B/V) = $\frac{0.2}{0.44}$

the probability that the writer is British P(B/V) = 0.4545 = 45.45%

6 0

3 years ago

60% of a museum’s fossils are from the Jurassic Period. If the number of fossils from the Jurassic period is 15, what is the tot

Keith_Richards [23]

Answer : The total number of fossils at the museum are, 25

Step-by-step explanation :

As we are given that 60% of a museum’s fossils are from the Jurassic Period.

Let the total number of fossils at the museum be, 'x'

Given:

Number of fossils from the Jurassic period = 15

The % of a museum’s fossils are from the Jurassic Period = 60%

Thus, the expression will be:

$\frac{15}{x}\times 100=60$

By solving the term 'x' we get:

$x=\frac{15}{60}\times 100$

$x=25$

Thus, the total number of fossils at the museum are, 25

8 0

3 years ago

A single carton of juice costs $4.20. A special offer pack of 3 cartons costs $9.45. Ali bought a special offer pack instead of

fgiga [73]

1 cartons of juice = $4.20

3 single cartons = 4.20 * 3 = $12.60

1 pack = $9.45

He saved 12.60 - 9.45 = $3.15

So, he saved $3.15, compared to the total ($12.60)

To calculate the percentage, we will do a proportion:

3.15 (money saved) : 12.60 (total of 3 single cartons) = x (how much percentage) : 100 (total)

3.15 : 12.6 = x : 100

To calculate x, we will moltiplicate the ends (where we have known numbers) than divide all per 12.6

x = (3.15 * 100) / 12.60 = 315 / 12.6 = 25

So the percentage saving is 25%

6 0

4 years ago