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3 years ago

Find the value of x. I tried 40 but it told me it was incorrect.

Mathematics

1 answer:

Valentin [98]3 years ago

4 0

Answer:

Step-by-step explanation:

90 - 43 = 47

x + 3 = 47

x = 47 - 3

= 44

I think the answer is 44. Pls check and correct me if I'm wrong.

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The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 3 to 5. If there were 7

Zinaida [17]

Answer:

2967 yes votes

Step-by-step explanation:

Welcome to Brainly!

One way of doing this problem follows:

Find the ratio, r, mentioned in the problem statement. To do this,

write the equation 3r + 5r = 7912 and solve this for r:

8r = 7912, so that r = 989.

Then the number of yes votes was 3(989), or 2967, and the number of no votes was 5(989), or 4947.

check: Does the ratio 2967/4947 equal 3/5? yes.

There were 2967 yes votes.

8 0

3 years ago

In the standard Normal distribution, which z-score represents the 99th percentile?

nydimaria [60]

The Z- score representing the 99th percentile is given by 2.33

Problems of commonly distributed samples can be solved using the z-score formula.

For a set with a standard deviation, the z-score scale X is provided by:

Z = ( x- mean )/ standard deviation

Z-score measures how many standard deviations are derived from the description. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the scale is less than X, that is, the X percentage. Subtract 1 with p-value, we get the chance that the average value is greater than X.

To Find the z-result corresponding to P99, 99 percent of the normal distribution curve.

This is the Z value where X has a p-value of 0.99. This is between 2.32 and 2.33, so the answer is Z = 2.33

For more information regarding normal distribution, visit brainly.com/question/12691636

#SPJ10

3 0

2 years ago

At a ski resort, 1/4 of the 300 skiers are beginners, and 1/4 of the 260 snowboarders are beginners. The resort staff used the d

Evgen [1.6K]

$\frac{1}{4}(300 + 260) = \frac{1}{4} \times 300 + \frac{1}{4} \times 260$ is the expression that demonstrates the distributive property

<em><u>Solution:</u></em>

Given that,

At a ski resort, $\frac{1}{4}$ of the 300 skiers are beginners

$\frac{1}{4}$ of the 260 snowboarders are beginners

The resort staff used the distributive property to make the calculation of the total number of beginners on the ski slopes

Beginners in skiers = $\frac{1}{4}$ of the 300

Beginners in snowboarders = $\frac{1}{4}$ of the 260

Total number of beginners = Beginners in skiers + Beginners in snowboarders

$\text{ Total number of beginners } = \frac{1}{4}(300) + \frac{1}{4}(260)$

We have to use distributive property

The distributive property of multiplication states that when a number is multiplied by the sum of two numbers, the first number can be distributed to both of those numbers and multiplied by each of them separately, then adding the two products together for the same result as multiplying the first number by the sum

<em><u>Therefore, our expression is:</u></em>

$\frac{1}{4}(300) + \frac{1}{4}(260)$

We have to take $\frac{1}{4}$ as common term to get distributive property

$\frac{1}{4}(300) + \frac{1}{4}(260) = \frac{1}{4}(300 + 260)\\\\\frac{1}{4} \times 300 + \frac{1}{4} \times 260 = \frac{1}{4}(300 + 260)$

Thus distributive property is applied

8 0

3 years ago

Solve for x<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%20%2B8-5%3D-2" id="TexFormula1" title="\sqrt{x} +8-5=-2" alt="\sqrt{

AlekseyPX

<h3><u>Step-by-step explanation:</u></h3><h3>√x+8=-5+2</h3><h3>√x+8=-2+5</h3><h3>√x+8=3</h3><h3>x+8=9</h3><h3>x=9-8</h3><h3>x=1</h3><h3><u> <em>I </em><em>hope </em><em>it'll </em><em>help </em><em>you</em><em>.</em><em>.</em></u></h3>

4 0

1 year ago

Devide<br> X^3+x^2+3x-4 by x^2+2x+1

lyudmila [28]

Answer:

x-1+\frac{4x-3}{x^2+2x+1}

Step-by-step explanation:

6 0

2 years ago