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nevsk [136]
2 years ago
13

A number is multiplied by 8, and that product is added to 2. The sum is equal to the product of 2 and 25. Find the number.

Mathematics
1 answer:
LenKa [72]2 years ago
6 0

Answer: the number = 6

Step-by-step explanation:

<u>Let x be the number.</u>

<u>Set equation according to the information given</u>

2 + 8x = 2 × 25

<u>Simplify by multiplication</u>

2 + 8x = 50

<u>Subtract 2 on both sides</u>

2 + 8x - 2 = 50 - 2

8x = 48

<u>Divide 8 on both sides</u>

8x / 8 = 48 / 8

\boxed {x=6}

Hope this helps!! :)

Please let me know if you have any questions

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How many true conditional statements may be written using the following statements?
tangare [24]
The answer is A, Hope this helps <3... can i have brainlyest?

4 0
3 years ago
Point K on the number line shows Kelvin's score after the first round of a quiz: In round 2, he lost 9 points. Which expression
weqwewe [10]

Complete question :

Point K on the number line shows Kelvin's score after the first round of a quiz: A number line is shown from negative 10 to 0 to positive 10. There are increments of 1 on either side of the number line. The even numbers are labeled on either side of the number line. Point K is shown on 3. In round 2, he lost 9 points. Which expression shows how many total points he has at the end of round 2? 3 + (−6) = −9, because −9 is 6 units to the left of 3 3 + 6 = −9, because −9 is 6 units to the left of 3 3 + (−9) = −6, because −6 is 9 units to the left of 3 3 + 9 = −6, because −6 is 9 units to the left of 3

Answer: 3 + (−9) = −6, because −6 is 9 units to the left of 3

Step-by-step explanation:

Given the following :

Width of number line = - 10 to + 10

Point K on the number line = +3 ( kelvin's score after the first round of quiz).

If Kelvin losses 9 points in round 2  = - 9

Hence at the end of round 2, He'll have a total of :

Point at the end of round 1 + point lost in round 2

3 + (-9) = - 6

6 0
3 years ago
X: y = 1:5 Which is the correct equation? A y = 5x By= C y=x-4 D y=x+4
Ymorist [56]
The answer should be A. For example, if x = 1, and the ratio between x and y is y is 5 times greater than x, then y would equal 5, which is only true in A.

Or, use the number 5 as an example. If x = 5, and the ratio between x and y is y is 5 times greater than x, then y is 5.

And if you put that into A, y = 5x, it becomes 25 = 5(5)
Then 25 = 25, which is true!
3 0
2 years ago
Clinical trials involved treating flu symptoms with a new medicine. Among 724 patients treated
schepotkina [342]

According to the null hypothesis, the test statistic of the proportion is of z = 120.1.

<h3>What is the null hypothesis?</h3>

The claim is that the rate of nausea is greater than the 6% rate experienced by flu patients given a placebo. At the null hypothesis, we consider the claim as false, hence the null hypothesis is:

H_0: p \leq 0.06

<h3>What is the test statistic?</h3>

The test statistic is given by:

z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}

In which:

  • \overline{p} is the sample proportion.
  • p is the proportion tested at the null hypothesis.
  • n is the sample size.

In this problem, the parameters are:

p = 0.06, n = 724, \overline{p} = \frac{72}{724} = 0.0994

Hence, the test statistic is given by:

z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}

z = \frac{0.0994 - 0.06}{\sqrt{\frac{0.06(0.94)}{724}}}

z = 120.1

You can learn more about test statistic at brainly.com/question/16313918

8 0
2 years ago
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Verizon [17]

Answer:

Cross canclening

Step-by-step explanation:

15/35 = is 4/5 x 3/7 you just mutliply on top and bottom

then you simplfy it which makes it 3/7 in totall

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