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3 years ago

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A vendor sold 81 hotdogs during a football game. If the ratio of hotdogs to hamburgers sold was 9: 4, how many hamburgers did th

e vendor sell? 7.

1 answer:

Anastasy [175]3 years ago

7 0

Answer:

36 hamburgers.

Step-by-step explanation:

He sold 81 hot-dogs, that's 9 unit.

9 units → 81

1 units → (81/9)

1 units → 9

4 units → 36

Therefore vendor sold 36 hamburgers.

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The percent of concentration of a certain drug in the bloodstream x hours after the drug is administered is given by K(x) 5x/x^2

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Given :

The percent of concentration of a certain drug in the bloodstream x hours after the drug is administered is given by $K(x) = \dfrac{5x}{x^2+9}$ .

To Find :

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Solution :

For maximum value of x, K'(x) = 0.

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3 years ago

What are the total amount of choices possible if an individual is to create a 4 digit password using the digits 0 through 9 incl

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2 years ago

Read 2 more answers

Three students, Matthew, Thompson and Amos shared #15000 in the ratio of 5:2:x respectively. If Matthew's share is 7500, calcula

jasenka [17]

Answer:

The value of x is 3.

Step-by-step explanation:

Matthew earned 7500 of 15000, which is exactly half the total amount, meaning that the fraction corresponding to his earnings is 1/2.

Rate of 5:2:x, with number 5 corresponding to Matthew, mean that his fraction of the earnings, in function of x is given by:

$\frac{5}{5 + 2 + x} = \frac{5}{7 + x}$

Both fractions are equal, so:

$\frac{5}{7 + x} = \frac{1}{2}$

Applying cross multiplication:

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$x = 10 - 7$

$x = 3$

The value of x is 3.

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3 years ago