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3 years ago

What expression represents 7 times the sum of a number and 8?

2 answers:

3 0

7(n + 8 You use the parentheses to know that that the adding comes first because usually in PEMDAS multiplication comes first.

Dmitry_Shevchenko [17]3 years ago

3 0

Answer:

y=7(8+x)

Step-by-step explanation:

not much to explain sry.

pls give thx and brainliest wannna level up

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I organized an ocean cleanup and we collected a total of 25 pounds of garbage 16 pounds of the garbage consisted of plastic what

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64%. You would divide 16 from 25 because you're trying to find the amount of garbage that was plastic.

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3 years ago

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How do you know if two lines are parallel?

GalinKa [24]

The lines never intersect or touch should be the answer.

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A survey of 32 different gas stations in Texas found the average price of gasoline to be $3.19 a gallon with a sample standard d

Leni [432]

Answer:

The value of test statistic is -4.1247

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $3.26 a gallon

Sample mean, $\bar{x}$ = $3.19 a gallon

Sample size, n = 32

Sample standard deviation, σ = $0.096

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 3.26\text{ dollars a gallon}\\H_A: \mu < 3.26\text{ dollars a gallon}$

We use one-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{3.19 - 3.26}{\frac{0.096}{\sqrt{32}} } = -4.1247$

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3 years ago

I need help how do I slove this and how do I figure out the ratio. And could you provide a guide on how you go about finding the

bulgar [2K]

Answer:

<h3>Option C. 6 : 1 is the answer.. </h3>

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3 years ago

What is the slope of the line?<br> 3x-4y=7

Vinvika [58]

Answer:

3/4

Step-by-step explanation:

3x - 4y = 7.....subtract 3x from both sides

-4y = -3x + 7 ...now we divide both sides by -4

(-4/-4)y = (-3/-4)x + (-7/4)...simplify

y = 3/4x - 7/4

y = mx + b

y = 3/4x - 7/4.....so the number in the m position is 3/4 <== ur slope

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3 years ago

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