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yanalaym [24]
3 years ago
12

3 (x - 2) = 7 – (4 - x)​

Mathematics
2 answers:
larisa [96]3 years ago
7 0

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

x=92x=92

Decimal Form:

x=4.5x=4.5

Mixed Number Form:

x=412x=412

-BARSIC- [3]3 years ago
7 0

the answer is x = 9/2

explanation

3 (x - 2) = 7 – (4 - x)

apply the distributive law to 3(x - 2)

to get 3x - 6

simplify 7-(4-x)

3 + x

you now have

3x - 6 = x + 3

add 6 to both sides

<u>-6+6=0</u>   <u>3 + 6 = 9</u>

3x=x+9

subtract x from both sides

<u>3x - x = 2x  </u>   <u>x - x = 0</u>

2x = 9

divide both sides by 2

2x/2 = x    9/2

to get x = 9/2

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Answer:

A figure is reflected in two intersecting lines that form an angle of 40°

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School started at 8:05 a.m and ended at 2:40p.m. the work below shows Erica's calculation of the length of the school day
harina [27]

Answer:

B. She subtracted the end time from the start time and

D. She did not account for a.m. and p.m. in the start and end times.

Step-by-step explanation:

The school started at 8:05 a.m. and ended at 2:40 p.m.

And the length of the school day is calculated by Erica and it is shown in the attached photo.

See the attached photo.

Erica has done two errors which are  

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D. She did not account for a.m. and p.m. in the start and end times. (Answer)

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3 years ago
One batch of mooncakes contains 1/4 tablespoons of kansui. How many tablespoons of kansui are
Ghella [55]

From the division property, the required kansui is 5/32 tablespoon.

What is division?

One of the four fundamental arithmetic operations, or the process by which two or more numbers are added together to create a new number, is division. Multiplication, addition, and subtraction round out the list of operations.

Given that a batch of mooncake contains 1/4 tablespoon of kansui.

Given batch of mooncake is 1 3/5 = 8/5

Therefore,

\frac{\frac{1}{4}}{\frac{8}{5}}\\=\frac{1}{4} \times \frac{5}{8}\\=\frac{5}{32}

Hence, the required kansui is 5/32 tablespoon.

To learn more about division from the given link

brainly.com/question/25289437

#SPJ9

3 0
1 year ago
a stationer paid 18 for a set of pens what must be the selling price if he wants to make a profit of 15%​
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Soooo i am happy FOR him
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Please help me do it please
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Answer:

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Step-by-step explanation:

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