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3 years ago

Solve for x. 5(x+1)≤5x+3 no solution all real numbers x≤1 x≤7

Mathematics

2 answers:

masya89 [10]3 years ago

7 0

Answer:

no solution i took the test it was correct

Step-by-step explanation:

VladimirAG [237]3 years ago

3 0

Answer:

No solution

Step-by-step explanation:

You are given the inequality

$5(x+1)\le 5x+3$

First, eliminate brackets in left side of the inequality:

$5x+5\le 5x+3$

Now separate variables and numbers:

$5x-5x\le 3-5$

$0\le -2$

The last inequality is false (0 is not less than -2), so the initial inequality has no solution.

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Estimate 1.133+7.684+4.718

avanturin [10]

Answer:

1.133 is about 1, 7.684 is about 8, and 4.718 is about 5. Thus, 1 + 8 + 5 = about 14.

6 0

3 years ago

Read 2 more answers

Order from least to greatest 7.2 7.04 7.413 7.134

vfiekz [6]

Answer:

7.04, 7.134 ,7.2, 7.413

Step-by-step explanation:

4 0

2 years ago

Assume that a simple random sample has been selected from a normally distributed population. Find the test statistic t.

lawyer [7]

Using the t-distribution, it is found that the p-value of the test is 0.007.

At the null hypothesis, it is tested if the mean lifetime is not greater than 220,000 miles, that is:

$H_0: \mu \leq 220000$

At the alternative hypothesis, it is tested if the mean lifetime is greater than 220,000 miles, that is:

$H_1: \mu > 220000$ .

We have the standard deviation for the sample, thus, the t-distribution is used. The test statistic is given by:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

The parameters are:

$\overline{x}$ is the sample mean.
$\mu$ is the value tested at the null hypothesis.
s is the standard deviation of the sample.
n is the sample size.

For this problem:

$\overline{x} = 226450, \mu = 220000, s = 11500, n = 23$

Then, the value of the test statistic is:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{226450 - 220000}{\frac{11500}{\sqrt{23}}}$

$t = 2.69$

We have a right-tailed test(test if the mean is greater than a value), with t = 2.69 and 23 - 1 = 22 df.

Using a t-distribution calculator, the p-value of the test is of 0.007.

A similar problem is given at brainly.com/question/13873630

8 0

2 years ago

Eric and Mark were at a ball game and visited the concession stand. They each got a hamburger, and Mark got a lemonade and some

LenaWriter [7]

Write an out an equation using the information given. So:

8 + 5 + x - 2 = 14.5
13 + x - 2 = 14.5 
11 + x = 14.5 
x = 3.50

This means that the answer is D.

Hope this helped :)

3 0

3 years ago

Read 2 more answers

PLEASE HELP SOLVE I WILL MARK AS BRAINLESS!

AlexFokin [52]

Answer:

See below

Step-by-step explanation:

$13) \: no \: of \: people = 2 \div \frac{1}{8} \\ = 2 \times \frac{8}{1} \\ = 16 \\ \\ 14) \: no \: of \: prizes \: won \: by\:Mallory \\ = \frac{2}{ \cancel3} \times \cancel6 \\ = 2 \times 2 \\ = 4 \\ \\ 15) \: no \: of \: quart \: diced \: tomatoes \\ = 5 \frac{1}{4} \times 1 \frac{2}{3} \\ \\ = \frac{ \cancel{21}}{4} \times \frac{5}{ \cancel3} \\ \\ = \frac{7}{4} \times 5 \\ \\ = \frac{35}{4} \\ \\ = 8 \frac{3}{4} \\ \\ 16) \: no \: of \: blocks = 123 \frac{1}{2} \div 6 \frac{1}{2} \\ \\ = \frac{247}{2} \div \frac{13}{2} \\ \\ = \frac{247}{2} \times \frac{2}{13} \\ \\ \frac{247}{13} \\ \\ = 19$

3 0

2 years ago