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rjkz [21]
2 years ago
15

Solve for x: 2(5x + 9) = 78

Mathematics
2 answers:
charle [14.2K]2 years ago
7 0
10x + 18=78
10x= 78-18
10x=60
X=6
Readme [11.4K]2 years ago
5 0

\boxed{\large{\bold{\blue{ANSWER~:) }}}}

  • 2(5x+9)=78

  • 10x+18=78

  • 10x=78-18

  • 10x=60

  • \sf{ x=\dfrac{60}{10}  }

  • x=6
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There asking for the equation, and the possible answers are 

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2 years ago
Please help logarithms!
nlexa [21]

Given:

\log_34\approx 1.262

\log_37\approx 1.771

To find:

The value of \log_3\left(\dfrac{4}{49}\right).

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We have,

\log_34\approx 1.262

\log_37\approx 1.771

Using properties of log, we get

\log_3\left(\dfrac{4}{49}\right)=\log_34-\log_349      \left[\because \log_a\dfrac{m}{n}=\log_am-\log_an\right]

\log_3\left(\dfrac{4}{49}\right)=\log_34-\log_37^2      

\log_3\left(\dfrac{4}{49}\right)=\log_34-2\log_37          [\log x^n=n\log x]

Substitute \log_34\approx 1.262 and \log_37\approx 1.771.

\log_3\left(\dfrac{4}{49}\right)=1.262-2(1.771)

\log_3\left(\dfrac{4}{49}\right)=1.262-3.542

\log_3\left(\dfrac{4}{49}\right)=-2.28

Therefore, the value of \log_3\left(\dfrac{4}{49}\right) is -2.28.

5 0
2 years ago
The probability of raining on Saturday is 0.09. If today is Saturday, then find the
Rudik [331]

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2 years ago
A picnic basket is shaped like a rectangular prism. The height of the basket is 8 inches. The bottom of the basket has an area o
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2 years ago
At the fall festival, a booth is selling $5 meals and $10 meals. They sell 1000 meals in all and collect $3500. Which system of
Tamiku [17]

The system of equation that can be used to represent the number of meals sold is

x + y = 1000

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Given:

Number of $5 meals sold = x

Number of $10 meals sold = y

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The equations:

Quantity

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x + y = 1000

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Learn more about equation:

brainly.com/question/15165519

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