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2 years ago

Which sentence explains the correct first step in the solution of this equation?

Mathematics

1 answer:

siniylev [52]2 years ago

3 0

Answer:

<h3>B. Apply the distributive property to get 4x-12=9</h3>

$\boxed{\sf{x=\dfrac{21}{4}=5.25 }}$

Step-by-step explanation:

Isolate the term of x from one side of the equation.

Use the distributive property.

<u>Distributive property:</u>

$\Longrightarrow: \sf{A(B+C)=AB+AC}$

<u>Expand the form multiply.</u>

4*x=4x

4*3=12

<u>Rewrite the problem down.</u>

4x-12=9

<u>Add by 12 from both sides.</u>

4x-12+12=9+12

<u>Solve.</u>

<u />

<u>Add the numbers from left to right.</u>

9+12=21

4x=21

Divide by 4 from both sides.

4x/4=21/4

<u>Solve.</u>

<u>Divide the numbers from left to right.</u>

x=21/4

21/4=5.25

<u>Therefore, the final answer is x=21/4=5.25.</u>

I hope this helps you! Let me know if my answer is wrong or not.

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Three ways to write 18/6

const2013 [10]

One way to write 18/6 is to compute 18/6 to be the whole number of a quotient that is equal to. Another way to write 18/6 is to write it as an improper fraction that's reduced. One more way to write 18/6 is as a decimal. Note how all of these ways of writing the same expression are all equal to writing one same value, and it's the WAY in which you modify what you're writing.

3 0

3 years ago

A newspaper article claimed: "the average cost of weekly groceries is $124.50." what statistical measurement are they most likel

Scilla [17]

The average cost of weekly groceries exists at $124.50." The statistical measurement exists they most probably claim exists mean.

The arithmetic mean of a given data exists as the totality of all observations divided by the number of observations.

For instance, a cricketer's scores in five ODI matches exist as follows:

12, 34, 45, 50, 24.

To estimate his average score in a match, we compute the arithmetic mean of data utilizing the mean formula:

Mean = Sum of all observations/Number of observations

Median

The value of the middlemost observation, acquired after organizing the data in ascending or descending order, exists named the median of the data.

For instance, consider the data: 4, 4, 6, 3, 2. Let's organize this data in ascending order: 2, 3, 4, 4, 6. There exist 5 observations.

Therefore, median = middle value i.e. 4.

Mode

The value which occurs most often in the provided data i.e. the observation with the highest frequency exists named a mode of data.

As per the circumstances we have given the average cost of groceries.

The mean exists also the average sum of data divided by the total number of data.

Therefore, the statistical measurement exists as the mean.

To learn more about mean refer to:

brainly.com/question/15323584

#SPJ4

3 0

1 year ago

the exit to garrett's house is after exit 51 but before exit 62. the number on the exit sing is not a prime nunber. the number i

Alex Ar [27]

52
- is prime? No
- is multiple of 3? No
continue

53
- is prime? Yes
continue

54
- is prime? No
- is multiple of 3? Yes
- is multiple of 4? No
continue

55
- is prime? No
- is multiple of 3? No
continue

56
- is prime? No
- is multiple of 3? No
continue

57
- is prime? No
- is multiple of 3? Yes
- is multiple of 4? No
continue

58
- is prime? No
- is multiple of 3? No
continue

59
- is prime? Yes
continue

60
- is prime? No
- is multiple of 3? Yes
- is multiple of 4? Yes

Therefore 60 is the answer, as it fits all the conditions

Simple trial and error.

5 0

3 years ago

Read 2 more answers

Pls help me out on this ill will give brainiest for the best answer

Svetach [21]

Answer:

Step-by-step explanation:

butt

7 0

2 years ago

The answer and how to do it.

Kruka [31]

let x = orginal price of the shorts

$21 = x(100%-20%) * 1.05

$21 = x(80%) * 1.05

$21 = 0.8x * 1.05

Subtract 1.05 from both sides

$19.95 = 0.8x

Divide 0.8 from both sides

$24.9375 = x

So the orginal price of the shorts are about $24.94

4 0

3 years ago