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Colt1911 [192]
4 years ago
9

Find the value of x. (7x) (2x+27)

Mathematics
2 answers:
azamat4 years ago
5 0

Answer:

17 \:  \: degrees

Step-by-step explanation:

7x + 2x + 27 = 180 \\ 9x = 180 - 27 \\ 9x = 153 \\  \frac{9x}{9}  =  \frac{153}{9}  \\ x = 17 \:  \: degrees

ki77a [65]4 years ago
3 0
The answer is: b) 17

Check is :
(7x) = (2x + 27)
(7 • 17) = ((2 • 17) + 27)
(7 • 17) = (34 + 27)
119 = 61

119 + 61 = 180 ✅
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3 years ago
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7 0
4 years ago
Simplify:- ~~~~~~~
Alchen [17]

\sf \dashrightarrow \:  -  \frac{2}{5}  - ( -  \frac{3}{10} ) - ( -  \frac{4}{7} )

When there is a - in front of an expression in parentheses, change the sign of each term in the expression to +

\sf \dashrightarrow \:  -  \frac{2}{5}    + \frac{3}{10}  +  \frac{4}{7}

Calculate the LCM of denominators

\sf\frac{ - 28 + 21 + 40}{70}

Calculate the difference

\bf \underline{ \underline \frac{33}{70} }

7 0
3 years ago
Read 2 more answers
Solve the following questions-
Setler79 [48]

Answer:

  2/5

Step-by-step explanation:

To get the ratio as a pure number, it must be expressed as the quotient of two values that have the same units. For the purpose here, it is convenient to convert both values to units of seconds.

__

<h3>units conversion</h3>

The conversion factor between minutes and seconds is ...

  1 minute = 60 seconds

Multiplying this equation by 3 gives ...

  3 minutes = 180 seconds

__

<h3>ratio of interest</h3>

Then the desired ratio is ...

  (72 seconds)/(3 minutes) = (72 seconds)/(180 seconds) = 72/180

  = (36×2)/(36×5)

  = 2/5

The ratio in its simplest form is 2/5.

3 0
2 years ago
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