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4 years ago

Solve for x 1/2(6x-4)=3x-2

1 answer:

3 0

1/2(6x-4)=3x-2
3x-2=3x-2
Then you will add 2 to both sides
Getting 3x=3x
Then subtract 3X to both sides to get x on the same side of the equation
0=0

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Please Help Me I'm confused with this question.

SVETLANKA909090 [29]

Answer:

The area of the circle is 28.274 inches squared

Step-by-step explanation:

First find the radius by dividing 6 by 2

6/2=3

Now plug in 3 to the area of a circle formula

$A=\pi r^{2}$

$A=\pi 3^{2}$ =28.274

The area of the circle is 28.274 inches squared

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4 0

4 years ago

Read 2 more answers

30 POINTS If you help.....

Flauer [41]

Answer:

$0.075$

Step-by-step explanation:

Step 1: Make the denominator a whole number

$\frac {0.48}{6.4}$

$\frac {0.48*5}{6.4*5}$

$\frac{2.4}{32}$

Step 2: Divide

$\frac{2.4}{32}$

$0.075$

Answer: $0.075$

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4 years ago

A person standing on a moving walkway travels 80 feet in 40 seconds. What equation represents the relationship? How many feet wi

mars1129 [50]

Answer:

Option B. y = 2x; 20 feet

Step-by-step explanation:

1. Determination of the equation that represents the relationship.

Let y be the distance travelled.

Let x be the time taken.

Let K be the speed.

From the question given above, the following data were obtained:

Distance (y) = 80 ft

Time (x) = 40 s

Speed (k) =.?

Speed = Distance /time

K = y/x ......... (1)

K = 80/40

K = 2 ft/s

Substitute the value of k into equation 1

K = y/x

K = 2 ft/s

2 = y/x

Cross multiply

y = 2x

Therefore, the equation that represents the relationship is y = 2x

2. Determination of the distance travelled in 10 s.

Speed (k) = 2 ft/s

Time (x) = 10 s

Distance (y) =.?

y = 2x

y = 2 × 10

y = 20 ft

Therefore, the person will travel 20 feet in 10 seconds.

From the above calculations, the right answer to the question is

Option B. y = 2x; 20 feet

6 0

3 years ago

5 cm 3 cm 4 cm could you pls find the surface area

alexira [117]

60 because you Multiply all the numbers and get your answer

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3 years ago

The sales of a grocery store had an average of $7,000 per day. The store introduced several advertising campaigns in order to in

Sati [7]

Answer:

a.The advertising campaigns increased the average daily sales.

Step-by-step explanation:

This is a hypothesis test for the population mean.

The claim is that the advertising campaigns increased the average daily sales.

Then, the null and alternative hypothesis are:

$H_0: \mu=7000\\\\H_a:\mu> 7000$

The significance level is 0.05.

The sample has a size n=100.

The sample mean is M=7280.

The standard deviation of the population is known and has a value of σ=1000.

We can calculate the standard error as:

$\sigma_M=\dfrac{\sigma}{\sqrt{n}}=\dfrac{1000}{\sqrt{100}}=100$

Then, we can calculate the z-statistic as:

$z=\dfrac{M-\mu}{\sigma_M}=\dfrac{7280-7000}{100}=\dfrac{280}{100}=2.8$

This test is a right-tailed test, so the P-value for this test is calculated as:

$\text{P-value}=P(z>2.8)=0.0026$

As the P-value (0.0026) is smaller than the significance level (0.05), the effect is significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that the advertising campaigns increased the average daily sales.

7 0

3 years ago