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Anna71 [15]
3 years ago
11

Solve for x: 2 x + 10 + 2 x - 6 = 36

Mathematics
1 answer:
skad [1K]3 years ago
7 0
Group together the like terms (plus 2x with 2x) (subtract 10 by 6)

4x+4=36

Move plus four to the other side as a negative

4x=32

Divide both sides by 4

32 divided by 4 is 8


Therefore, x is equal to 8
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A friend calls you and asks you to meet at the park 2 mi away in 25 min. You set off on your skateboard after the call. At what
xeze [42]

Answer:

speed greater than 0.08 mi/min

Step-by-step explanation:

given data

distance = 2 mi

time = 25 min

to find out

the distance you travel and your speed  and time related

solution

we know that distance is

distance = speed × time     ...............1

so at park at most 25 min

so we need time = \frac{distanec}{speed} \leq 25

so here

we know

\frac{2}{25} \leq speed

so

0.08 \leq speed

so we can say that he need to run at speed greater than 0.08 mi/min

8 0
3 years ago
Help me please!!!!!!!!
Over [174]

Step-by-step explanation:

To solve the equation for s we've got to leave s alone

n =  \frac{s + 360}{180}  \\ 180n = s + 360 \\ 180n - 360 = s

5 0
3 years ago
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stellarik [79]

Answer:

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Step-by-step explanation:

6. 5(4) +70=your answer is 90

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75+ 45+0=your answer is 110

4 0
3 years ago
Read 2 more answers
A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every ba
jekas [21]

Answer:

The test statistic is z = 1.865.

Step-by-step explanation:

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

H0: p = 0.11

This means that 0.11 is tested at the null hypothesis, and so:

\mu = 0.11

\sigma = \sqrt{0.11*0.89} = 0.3129

The engineer weighs 94 bags and finds that 16 of them are over-filled.

This means that:

n = 94, X = \frac{16}{94} = 0.1702

What is the test statistic?

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.1702 - 0.11}{\frac{0.3129}{\sqrt{94}}}

z = 1.865

The test statistic is z = 1.865.

6 0
2 years ago
Need help on this math question!!!
gavmur [86]

Answer:

s = 10w

Step-by-step explanation:

We can find the equation in <u>slope-intercept form</u> which is y = mx + b. The variables mean:

"b" - for the y-intercept (where the graph hits the y-axis)

"m" - for the slope (how steep the line is)

"x" and "y" - coordinates that satisfy the equation (points on the line)

From the graph, we can see that the y-intercept is 0. b = 0, therefore we do not need to write it in the equation.

To find the slope, "m", use the equation  m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}. To use it, substitute the coordinates for two points. Using the diagram, choose a point 1 and a point 2.

Point 1 (0, 0)      x₁ = 0   y₁ = 0

Point 2 (1, 10)     x₂ = 1   y₂ = 10

m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}          Substitute values

m = \frac{10-0}{1-0}          Subtract to simplify

m = \frac{10}{1}          Simplify the fraction

m = 10            Slope of the line

Since we know "m" and "b", we can write the equation:

y = mx + b

y = 10x + 0

y = 10x

We are not using "x" and "y" in this case. Change them according to the question.

x => w

y => s

y = 10x   =>   s = 10w

5 0
2 years ago
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