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likoan [24]
3 years ago
10

Find the value of x

Mathematics
1 answer:
torisob [31]3 years ago
4 0

Answer:

x = 37

Step-by-step explanation:

3y - 20 + x + 13 = 3x + 9

3y - 16 = 2x

1.5y - 8 = x

2y + 3x + 9 = 180

2y + 3x = 171

2y + 3(1.5y - 8) = 171

2y + 4.5y - 24 = 171

6.5y = 195

y = 30

1.5y - 8 = x

1.5 * 30 - 8 = x

45 - 8 = x

37 = x

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the slope of the line is below 2. use the coordinates of the labeled point to find a point-slope equation of the line.
Allushta [10]

Answer:

C

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = 2 and (a, b) = (1, 9) , thus

y - 9 = 2(x - 1) → C

3 0
3 years ago
I have three times as much money as does my brother. Our combined total is $42. How much does each of us have?
nika2105 [10]
For an instance, i stands for the money that you have, and b stands for the money that brother has.
An equation system based on the problem would be
i + b = 42 (equation 1)
i = 3b (equation 2)

Use substitution method to solve the problem
substitute 3b into i in the equation 1
i + b = 42
3b + b = 42
4b = 42
b = 42/4
b = 10.5

substitute the value of b into the equation 1
i = 3b
i = 3(10.5)
i = 31.5

You have $31.5 and your brother has $10.5
4 0
3 years ago
In 1994, the General Social Survey had a question that asked its participants (that currently smoked) if they had ever tried to
Roman55 [17]

Answer:

0.8239 is the population proportion of participants that tried quitting smoking.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 142

Participants that tried quitting smoking = 117

Parameter:

  • A parameter is a numerical value that describes a population.

Population proportion can be calculated as:

p = \dfrac{x}{n} \\\\p= \dfrac{117}{142} \\\\p= 0.8239

0.8239 is the population proportion of participants that tried quitting smoking.

7 0
3 years ago
Which equation does NOT have the same solution as 1/3 (19 – 2x) = x + 1
Yuri [45]

Answer:

x = 19/2 hope it goes well

3 0
3 years ago
Read 2 more answers
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klemol [59]

Answer:

Ella went on 27 rides.

Step-by-step explanation:

$17.50 - $4 = $13.50

6 0
3 years ago
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