<img src="https://tex.z-dn.net/?f=x%20%2B%207%20%5Cleqslant%20or5%20%2B%202x%20%3E%207" id="TexFormula1" title="x + 7 \leqslant

All categories

3 years ago

or5 + 2x > 7" alt="x + 7 \leqslant or5 + 2x > 7" align="absmiddle" class="latex-formula">
I need help solving this equation

Mathematics

1 answer:

3241004551 [841]3 years ago

6 0

The answer to x +7<_ 5+2x>7 is
x >_2

You might be interested in

What is the answer...?

Finger [1]

Answer:The answer is c

Step-by-step explanation:

Multiply both side is the equation by -1.

Sum the equations vertically to eliminate at least one variable

Divide both sides of the equation by 3

Substitute the given value of y into the equation 2x+3y=8

and then solve for x

6 0

3 years ago

Simplify <br> I thought my answer is indeterminate but I'm not sure

Rom4ik [11]

Answer:

Believe on what you heart says

6 0

3 years ago

A manufacturing company uses crates to transport boxes of supplies. Two crates can hold 250 boxes. If the company needs to ship

il63 [147K]

Answer:

7 crates

Step-by-step explanation:

Let

x ----> the number of crates needed

we know that

Two crates can hold 250 boxes

using proportion

Find out how many crates they'll need for 875 boxes

$\frac{2}{250}\frac{crates}{boxes} =\frac{x}{875}\frac{crates}{boxes}\\\\x=2(875)/250\\\\x=7\ crates$

7 0

3 years ago

Read 2 more answers

Betty has several of the standard six sided dice that are common in many board games if Betty rolls one of these dice what is th

AlexFokin [52]

1/6, because since there are six sides, and you need one of them to land, it is a 1/6 probability.

4 0

4 years ago

The principal at Riverside High School would like to estimate the mean length of time each day that it takes all the buses to ar

Lilit [14]

Answer:

C) 11

Step-by-step explanation:

1) Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X$ represent the sample mean for the sample

$\mu$ population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size

Since the Confidence is 0.90 or 90%, the value of $\alpha=0.1$ and $\alpha/2 =0.05$ , and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.05,0,1)".And we see that $z_{\alpha/2}=1.64$