All categories

3 years ago

What is the common denominator denominator of 5/6 & 8/21?

Mathematics

1 answer:

konstantin123 [22]3 years ago

5 0

42 if you multiply 6 and 7 it's 42 and multiply 21 and 2 and it will be 42 so that's the common denominator

You might be interested in

I need find volumen i need help

ValentinkaMS [17]

Answer:

it's 512

Step-by-step explanation:

5 0

2 years ago

3.3 by 2.5 + 5.7 by 2.5

den301095 [7]

Answer:

22.5

Step-by-step explanation:

Using PEMDAS, we know that for expressions such as this, we're supposed to multiply before we add. This means that it should look something like this: (3.3 x 2.5) + (5.7 x 2.5). When you solve the multiplication first, you get 8.25 + 14.25. Solve, and you get 22.5. This problem can be solved using any basic calculator, or scratch paper!

5 0

3 years ago

How many liters are equal to 3,167 milliliters? Use the placement of the decimal point when dividing by a power of 10 to help yo

Marrrta [24]

Answer:

3.167 liters

Step-by-step explanation:

1 liter = 1,000 milliliters

3,167 milliliters * 1liter/1,000milliliters = 3.167 liters

3 0

3 years ago

Four times a number added to 3 times a larger number is 31. Seven subtracted from the larger number is equal to twice the smalle

aev [14]

Let the smaller number be x.
Let the bigger number be y.

$\begin{cases} &4x + 3y = 31 \tex{ ----- (1) } \\ &y- 7 = 2x \tex{ ----- (2) } \end{cases}$

Rearrange equation (2):
$\begin{cases} &4x + 3y = 31 \tex{ ----- (1) } \\ &y = 2x + 7 \tex{ ----- (2) } \end{cases}
$

Sub (2) into (1):

$4x + 3(2x + 7 ) = 31$
$4x + 6x + 21 = 31$
$10x + 21 = 31$
$10x = 10$
$x = 1$

Sub x = 1 into (2):

$y = 2x + 7$
$y = 2(1) + 7$
$y= 9$

Answer: The two numbers are 1 and 9.

5 0

3 years ago

Read 2 more answers

Use the Fourier expansion to explain why the note produced by a violin string rises sharply by one octave when the string is cla

stellarik [79]

Answer: check attached

Step-by-step explanation:

All explanation is shown in the attachment.

Goodluck...

8 0

3 years ago