X + y = 1,000
0.06x = 0.04y

Answers

Answer 1

Answer: If:
x + y = 1000
then:
y = 1000 - x

We can plug that into the other equation to solve for a value of x.
0.06x = 0.04y
0.06x = 0.04(1000-x)
0.06x = 40-0.04x
0.1x = 40
x = 400

We can then solve for y:
y = 1000 - 400
y = 600

Therefore, x = 400 and y = 600.

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Justin weighs 15 pounds less than Greg weighs. Half of Greg’s weight is 75 pounds less than Justin’s weight. How much does each of them weigh

Answers

The answer is:
Justin weighs 165 pounds.
Greg weighs 180 pounds.

If:
j - Justin's weight
g - Greg's weight

Then the system of equations is:
j + 15 = g ⇒ g = j + 15
1/2g = j - 75 ⇒ j = 1/2g + 75

We can replace j in the first equation:
g = 1/2g + 75 + 15
g - 1/2g = 90
1/2g = 90
⇒ g = 90 ÷ 1/2 = 180

Thus, Greg weighs 180 pounds.

Now, using the first equation, we will calculate Justin's weight:
j + 15 = g ⇒ j = g - 15
g = 180

Thus
j = g - 15 = 180 - 15 = 165

Therefore, Justin weighs 165 pounds.

Dion is performing a hypothesis test in which the population mean is 92 and the standard deviation is 2. His sample size is 7 with a mean of 93.5. Which of the following correctly depicts the z-statistic for this data?0.28
0.36
1.98
2.63

Answers

Answer:

Option 3rd is correct

1.98

Step-by-step explanation:

Using the formula:

$z = (X-\mu)/((\sigma)/(√(n)))$

where,

X is the sample mean, $\mu$ is the mean, $\sigma$ is the standard deviation and n is the sample size.

As per the statement:

Dion is performing a hypothesis test in which the population mean is 92 and the standard deviation is 2. His sample size is 7 with a mean of 93.5

⇒X = 93.5, n = 2 , $\mu = 92$ and $\sigma = 2$

Substitute these given values to calculate z;

$z = (93.5-92)/((2)/(√(7))) = (1.5)/(0.755928946) = 1.98431348$

Therefore, the z-statistic for the given data is, 1.98

Answer:

C. 1.98 on edu

Step-by-step explanation:

The number of times a player has golfed in one’s lifetime is compared to the number of strokes it takes the player to complete 18 holes. The correlation coefficient relating the two variables is –0.26.Which best describes the strength of the correlation, and what is true about the causation between the variables?

A. It is a weak negative correlation, and it is not likely causal.
B. It is a weak negative correlation, and it is likely causal.
C. It is a strong negative correlation, and it is not likely causal.
D. It is a strong negative correlation, and it is likely causal.

Answers

The right answer for the question that is being asked and shown above is that: "A. It is a weak negative correlation, and it is not likely causal." the statement that describes the strength of the correlation, and what is true about the causation between the variable is that A. It is a weak negative correlation, and it is not likely causal.

Answer:

It is NOT A, it is most likely B

Step-by-step explanation:

A the wrong answer on egde

Shelley pours 4/5 gallons of water into a bird bath . The next morning , she finds out 3/4 of the water is gone. What is the amount of water , in the gallons, that is gone? (PICTURE IS INCLUDED) Questions of u want to answer will be posting more right now!

Answers

Answer:1/5 is the answer

Step-by-step explanation:

PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG. PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.

A major stadium has 45,000 seats. If baseball fans have bought 5/8 of the seats for the next game, how many seats are available? 3. Draw a picture or a chart that shows the information and the question

Answers

Given:
45,000 seats
5/8 of the seats were bought for the next game.

To get the exact number of seats, we need to multiply the total number of seats by the fraction bought.

45,000 * 5/8 = (45,000 * 5) / 8 = 225,000 / 8 = 28,125 seats

5/8 of the total seats is 28,125 seats which are all unavailable.

8/8 - 5/8 = 8-5/8 = 3/8 is the fraction of the seats available.

45,000 - 28,125 = 16,875 seats available.

45,000 * 3/8 = (45,000 * 3) / 8 = 135,000 / 8 = 16,875

Answer:

A. 16,875

Step-by-step explanation:

I got this correct on my test for edmentum

What is the length of a segment with end points at (-3,4) and (4,4)? a. 1 b. 4 c. 7 d. 8