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1 year ago

3x = 15A) x= 4B) x= 5C) x = 6D) x= 12

Mathematics

1 answer:

xz_007 [3.2K]1 year ago

3 0

3x = 15

Divide both-side of the equation by 3

3x/3 = 15/3

x=5

B) is the correct option

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How do you do these two questions?

Mice21 [21]

Answer:

a) d²y/dx² = ½ x + y − ½

b) Relative minimum

Step-by-step explanation:

a) Take the derivative with respect to x.

dy/dx = ½ x + y − 1

d²y/dx² = ½ + dy/dx

d²y/dx² = ½ + (½ x + y − 1)

d²y/dx² = ½ x + y − ½

b) At (0, 1), the first and second derivatives are:

dy/dx = ½ (0) + (1) − 1

dy/dx = 0

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3 years ago

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Ymorist [56]

Answer:

Step-by-step explanation:

Given

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3 years ago

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4 years ago

Probability against a spinner landing on a green space if the spinner had 8 sections & 3 of them are green

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Probability AGAINST a spinner landing on green ...
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4 years ago

Read 2 more answers

The ratio of cassette to compact disc is 10 to 3 and the number of cassettes is 10 less than 5 times the number of compact discs

OlgaM077 [116]

There are 20 cassettes.

Step-by-step explanation:

Given,

Ratio of cassette to compact disc = 10:3

Let,

the number of cassettes = 10x

Number of compact disc = 3x

According to given statement;

the number of cassettes is 10 less than 5 times the number of compact discs.

10x = 5(Number of CD) - 10

$10x=3(5x)-10 \\10x=15x-10\\10=15x-10x\\10=5x\\5x=10$

Dividing both sides by 5

$\frac{5x}{5}=\frac{10}{5}\\x=2$

Number of cassettes= 10x = 10(2) = 20

There are 20 cassettes.

Keywords: variable, ratio

Learn more about variables at:

#LearnwithBrainly

5 0

3 years ago