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3 years ago

If a varies directly as b and a=3 when b=12, what is the value of a when b=18?

Mathematics

1 answer:

Zepler [3.9K]3 years ago

4 0

Answer:

a is proportional to b

a=kb

k is proportionality constant

k =a/b =3/12 =1/4

k=1/4 = a/b=a/18

1/4=a/18

a=18/4 =9/2 =4.5 answer

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Find the domain and range of the following graph<br> Write your answer as an interval.

HACTEHA [7]

Answer:

Domain: [1, infinity)

Range: All real numbers or (- infinity, + infinity)

Step-by-step explanation:

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1 year ago

Genevieve is 3 years older than twice her brother’s age. Genevieve is 21 years old. Write an equation to find her brother’s age.

Simora [160]

Answer:

her brother is 9

Step-by-step explanation:

21-3=18 18 divided by 2 = 9

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2 years ago

Read 2 more answers

Find m ab <br> Find m acb

gulaghasi [49]

MAB = 110
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3 years ago

Um homem estava indo para a Bahia com suas sete irmãs. Cada irmã carregava sete caixas, cada caixa tinha sete gatos,cada gato es

Anit [1.1K]

Answer:

2,752

Step-by-step explanation:

English Translation

A man was going to Bahia with his seven sisters. Each sister carried seven boxes, each box had seven cats, each cat had seven puppies. How many were going to Bahia?

Solution

1 man was going to Bahia

With his 7 sisters.

Total nunber of humans = 1 + 7 = 8 humans

Each of the 7 sisters carried 7 boxes.

Each of the 49 boxes had 7 cats

Total number of cats = 7 × 7 × 7 = 343 cats

Each of the 343 cats had 7 puppies

Total number of puppies = 7 × 343 = 2401 puppies.

Total number of living things going to Bahia

8 humans + 343 cats + 2401 puppies

= 2,752

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6 0

3 years ago

Mrs Fernandez has a total of 156 red and blue roses. After selling the same number of red and blue roses, she had 1/3 of the num

hodyreva [135]

The number of blue roses will be 72. Then the number of red roses that she have at first is 84.

<h3>What is the linear system?</h3>

A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.

Mrs Fernandez has a total of 156 red and blue roses.

After selling the same number of red and blue roses.

She had 1/3 of the number of red roses and 2/9 of the number of blue roses left.

Let x be the number of red rose and y be the number of blue roses.

Then the equation will be

x + y = 156 ...1

2x/3 = 7y/9

6x = 7y ...2

By solving the equations 1 and 2, we have

x = 84 and y = 72

Then the number of red roses that she have at first is 84.

More about the linear system link is given below.

brainly.com/question/20379472

#SPJ1

8 0

1 year ago