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trasher [3.6K]
2 years ago
5

If 3x − (7 − x) = 29, find the value of 6x.

Mathematics
1 answer:
Stells [14]2 years ago
7 0

Answer:

54

Step-by-step explanation:

3x -(7-x) = 29       remove the parens

3x - 7 + x = 29     simplify

4x -7 = 29            add 7 to both sides of the equation

4x = 36            divide by

x = 9

then 6x = 6 * 9 = 54

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32,111÷181= <br>whats is the remainder
Mrrafil [7]

The answer would be 177.4

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3 years ago
Architect Brian Peters spent 60% of a week's time working on drawings for a new apartment building. If Brian spent 18 hours work
Kipish [7]

Answer:

Brian Peters worked for total of 45 hours.

Step-by-step explanation:

Let the total number of hours worked be 'x'.

Now Given:

Hours spent on other projects = 18 hours.

Also Given:

60% of a week's time working on drawings for a new apartment building.

Hours spent on new apartment building = 60\%\times x = \frac{60}{100}x=0.6x

We need to find the total hours worked.

Solution:

Now we can say that;

total number of hours worked is equal to sum of Hours spent on new apartment building and Hours spent on other projects.

framing in equation form we get;

x=0.6x+18

Combining like terms we get;

x-0.6x=18\\\\x(1-0.6)=18\\\\0.4x=18

Now Dividing both side by 0.4 we get;

\frac{0.4x}{0.4}=\frac{18}{0.4}\\\\x=45\ hrs

Hence Brian Peters worked for total of 45 hours.

7 0
3 years ago
Chloe needs to swim a total of 9 miles this week. So far this week , she swam 5 5/8 miles. Use the equation 5 5/8 + m =9 to find
pshichka [43]

Alright, so all we have to do here is solve the equation!

5 5/8 + m = 9

m = 9 - 5 5/8

Now is the tricky part - doing the subtraction! Let's change 9 to 8 8/8 (which is still equal to 9).

m = 8 8/8 - 5 5/8

Then we can subtract fairly easily!

m = (8 - 5) + (8/8 - 5/8)

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Hope this helps!! :)

7 0
3 years ago
Read 2 more answers
Which expression is equal to (x+2)(−3x2+3x+1)?
padilas [110]
Multiply everything in the second parenthesis by x.

-3x^3 + 3x^2 + x

Multiply everything in the second parenthesis by 2.

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Combine these two equations together.

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Combine like terms.

-3x^3 - 3x^2 + 7x + 2

Hope this helps!
<span />
7 0
4 years ago
NEED HELP ASAP PLEASE SHOW WORK
rusak2 [61]

Step-by-step explanation:

<h2>—Math</h2>

x² – 2x + 7 = 4x – 10

x² –2x – 4x + 7 + 10= 0

x² –6x + 17 = 0

4 0
3 years ago
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