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Free_Kalibri [48]

2 years ago

6

What is the value of x in 2(5^x) = 14?

1 answer:

r-ruslan [8.4K]2 years ago

4 0

Answer:

0.34

Step-by-step explanation:

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Solve the equation 4/x=8

Veseljchak [2.6K]

Answer:

x = .5

Step-by-step explanation:

4 / x = 8

4 / .5 = 8

x = .5

7 0

2 years ago

If y-3x=9, 7x+y=25, what is the value of x and y?

lianna [129]

$\bold{\rm{Given}}\text{ : If y - 3x = 9, 7x + y = 25, what is the value of x and y}?$

$\bold{\rm{Solution}} \text{: We'll solve this by substitution method}$

$\dashrightarrow y - 3x = 9 \\ \\ \dashrightarrow \boxed{y = 9 + 3x } \qquad .. \sf eq(1)$

$\text{we got the value of y now getting the value of x}$

$\looparrowright 7x + y = 25 \\ \\ \looparrowright 7x = 25 - y \\ \\ \looparrowright \boxed{x = \frac{25 - y}{7}} \qquad .. \sf eq(2)$

$\text{Now, putting y = 9 + 3x in eq(2)}$

$\hookrightarrow x = \frac{25 - y}{7} \\ \\ \hookrightarrow x = \frac{25 - 9 + 3x}{7} \\ \\ \hookrightarrow 7x = 25 - 9 + 3x \\ \\ \hookrightarrow 7x - 3x = 16 \\ \\ \hookrightarrow 4x = 16 \\ \\ \hookrightarrow x = \frac{16}{4} \\ \\ \star \quad \boxed{ \green{ \frak{ x = 4}}}$

$\text{Now we know the value of x, for getting y we need to put x in eq(1)}$

$: \implies y = 9 + 3x \\ \\ : \implies y = 9 + 3(4) \\ \\ : \implies y = 9 + 12 \\ \\ \star \quad \boxed{\frak{ \green{y = 21}}}$

$\text{Hence, values of x and y are} \: \frak{ \green{4}} \: \text{and} \: \frak{ \green{21}} \: \text{respectively}.$

4 0

2 years ago

Long division for 1\18 PLS HELP I NEED IT RN ASAp

aniked [119]

Answer:

0.05555555555

Step-by-step explanation: divide 1 by 18.

3 0

2 years ago

Read 2 more answers

Rebecca was curious whether \triangle STV△STVtriangle, S, T, V and \triangle WUV△WUVtriangle, W, U, V are similar. She wrote a p

Alexxandr [17]

Answer:

The length of side VT is not 5

Step-by-step explanation:

I did the question and got the answer right

3 0

2 years ago

Read 2 more answers

Which of the following is the main of the set of data below? 30, 29, 28, 30, 24, 12, 26, 33, 25, 23

Marianna [84]

Answer:

The mean of the data is 26.

Step-by-step explanation:

Consider the provided data:

30, 29, 28, 30, 24, 12, 26, 33, 25, 23

Mean can be calculated as:

The average of all the data in a set.

$x=\frac{\Sigma x_{i}}{n}$

Therefore,

$x=\frac{30+29+28+30+24+12+26+33+25+23}{10}$

$x=\frac{260}{10}$

$x=26$

Thus, the mean of the data is 26.

3 0

2 years ago