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3 years ago

Solve the following step by step

Mathematics

2 answers:

GalinKa [24]3 years ago

8 0

Multiply both sides by 3. 9x + 21 = 2x + 13
Take away 2x from both sides to get 7x + 21 = 13
Take away 21 from both sides to get 7x = 8
Now divide both sides by 7.
X must be 1 1/7

Jobisdone [24]3 years ago

7 0

Answer:

by-step explanation:

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Katie is making chocolate candies for her classmates' Valentine's Day gifts. She melts 12.8 ounces of chocolate and divides it a

vovangra [49]

Answer:

0.32 ounces of chocolate per mold

Step-by-step explanation:

6 0

3 years ago

In 36 days a girl spent $18 on average how much did she spend daily

zalisa [80]

36 / 18 =2

On average, she spent $2 daily.

hope this helps :)

8 0

3 years ago

A young boy is growing at a rate of 3.5 cm per month. He is currently 90 cm tall. At that rate ,how many months will the boy gro

e-lub [12.9K]

First, subtract the height he will grow to to the height he is now.

132 - 90 = 42

Now divide this from 3.5.

42 / 3.5 = 12

So it will take 12 months for him to grow to a height of 132 cm.

3 0

3 years ago

Express 3.72727272727... as a rational number, in the form pq

Aloiza [94]

Hi there!

Let x = 3. 72727.... ---(i)

Multiply 100 in eqn. (i)

100x = 372. 72727... ---(ii)

Subtract Eqn. (i) from (ii)

100x - x = 372. 7272... - 3. 7272...

99x = 369

x = $\dfrac {369}{99}$

x = $\dfrac {41}{11}$

Hence, $\dfrac {41}{11}$ is th' required p-q form.

~ Hope it helps!

6 0

3 years ago

The function is used to convert temperature from Celsius (C) to Fahrenheit (F). The function C(K) = K − 273.15 is used to conver

jeka94

Answer:

The correct function for converting temperature from Kelvin to Fahrenheit is $F(K) = \frac{9(K - 273.15)}{5} + 32$

Step-by-step explanation:

Kelvin to Celsius function:

The function to convert a temperature from degrees Kelvin to degrees Celsius is given by:

$C(K) = K - 273.15$

Celsius to Fahrenheit function:

The function to convert a temperature from degrees Celsius to degrees Fahrenheit is given by:

$F(C) = \frac{9C}{5} + 32$

Which is the correct function for converting temperature from Kelvin to Fahrenheit?

In the equation to find F(C), we use C = C(K). So

$F(C) = \frac{9C}{5} + 32$

$F(C(K)) = \frac{9(K - 273.15)}{5} + 32$

$F(K) = \frac{9(K - 273.15)}{5} + 32$

The correct function for converting temperature from Kelvin to Fahrenheit is $F(K) = \frac{9(K - 273.15)}{5} + 32$

8 0

3 years ago