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3 years ago

Solve the following equation. 2/3x + 6 = 1/2x + 1/4 x

Mathematics

2 answers:

vesna_86 [32]3 years ago

6 0

Answer:

x=72

Step-by-step explanation:

2/3x + 6 = 1/2x + 1/4 x

Multiply both sides by 12 to get rid of the fractions

12(2/3x + 6) = 12(1/2x + 1/4 x)

8x +72 = 6x +3x

Combine like terms

8x+72 = 9x

Subtract 8x from each side

8x-8x+72 = 9x-8x

72 = x

nexus9112 [7]3 years ago

4 0

Answer:

x = 72

Step-by-step explanation:

Multiply through by the lowest common multiple of 3, 2 and 4

To clear the fractions multiply through by 12

The equation can now be written as

8x + 72 = 6x + 3x, that is

8x + 72 = 9x ( subtract 9x from both sides )

- x + 72 = 0 ( subtract 72 from both sides )

- x = - 72 ( multiply both sides by - 1 )

x = 72

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Un obrero gana $ 80 por hora. Si puede trabajar hasta 12 horas por día ¿Cuánto es el máximo que puede ganar en un mes si labora

Lostsunrise [7]

19,200$
Sabemos que gana 80$ a la hora. Podríamos escribirlo como 80h (h representa las horas que trabaja)
Trabaja 12 horas por día y 5 días a la semana. Eso sería 60 horas a la semana. En un mes hay 4 semanas entonces si trabaja 60 horas a la semana, en 4 semanas trabaja 240 horas. En un mes trabaja 240 horas. 80h donde h=240. 80(240)= 19,200

3 0

3 years ago

the average age of men who had walked on the moon was 39 years, 11months, 15days. Is the value aparameter or a statistic?

Softa [21]

Answer:

Parameter

Step-by-step explanation:

We are given the following in the question:

The average age of men who had walked on the moon was 39 years, 11 months, 15 days.

Population and sample:

Population is the collection of all observation for variable of interest or individual of interest.
Sample is a subset for population.

Parameter and statistic:

Any variable or value describing a population is known as parameter.
Any value describing a sample is known as statistic.

Population of interest:

men who had walked on the moon

Value:

average age of men who had walked on the moon

Thus, the give value describes a population and hence, it is a parameter.

8 0

4 years ago

How do I solve this ?

eduard

Look at the picture.

ΔZYX and ΔDYC are similar. Therefore the lengths of sides are in proportion:

$\dfrac{DC}{ZX}=\dfrac{DY}{ZY}$

DC = x

ZX = 16

DY = a

ZY = a + a = 2a

Substitute:

$\dfrac{x}{16}=\dfrac{a}{2a}$

$\dfrac{x}{16}=\dfrac{1}{2}$ <em>multiply both sides by 16</em>

$\boxed{x=8}$

<h3>Answer: CD = 8</h3>

6 0

4 years ago

Someone, please help me fill this out

nadezda [96]

Answer:

Here is the summary:

y = 13x+5 satisfies the points (0, 5) and (-2, -21)

y = -3x satisfies the points (0, 0), (-5, -15) and (-3, 9)

y = x-10 satisfies the points (8, -2)

Step-by-step explanation:

Given the equation

y = 13x+5

y = -3x

y = x-10

The points which satisfy the equation y=13x+5

y = 13x+5

Checking the point (0, 5)

5 = 13(0)+5

5 = 0 + 5

5 = 5

TRUE

Checking the point (-2, -21)

-21 = 13(-2)+5

-21 = -26 + 5

-21 = -21

TRUE

The points which satisfy the equation y=-3x

y = -3x

Checking the point (0, 0)

0 = -3(0)

0 = 0

TRUE

Checking the point (-5, -15)

y = -3x

-15 = -3(-5)

-15 = -15

TRUE

Checking the point (-3, 9)

y = -3x

9 = -3(-3)

9 = 9

TRUE

The points which satisfy the equation y=x-10

y = x-10

Checking (8, -2)

-2 = 8 - 10

-2 = -2

TRUE

Therefore, from the above calculations we conclude the summary:

Here is the summary:

y = 13x+5 satisfies the points (0, 5) and (-2, -21)

y = -3x satisfies the points (0, 0), (-5, -15) and (-3, 9)

y = x-10 satisfies the points (8, -2)

7 0

3 years ago

Guys I need help I'm giving brainlist also show your work for me please this is my last math problem help

gladu [14]

Answer:

The customer would pay $24,073 for Car R

Step-by-step explanation:

5% of 25,340 is 1267

so you subtract 1267 from 25,340 and get 24,073

6 0

3 years ago