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skad [1K]
3 years ago
8

Solve the following equation: a/3.5 - 4.8 = 6.3 a= ______

Mathematics
2 answers:
ivann1987 [24]3 years ago
7 0

Answer:

\boxed {a = 38.85}

Step-by-step explanation:

Solve for the value of a:

\frac{a}{3.5} - 4.8 = 6.3

-Add both sides by 4.8:

\frac{a}{3.5} - 4.8 + 4.8 = 6.3 + 4.8

\frac{a}{3.5} = 11.1

-Multiply both sides by 3.5:

a = 11.1 \times 3.5

\boxed {a = 38.85}

Therefore, the value of a is 38.85.

wlad13 [49]3 years ago
3 0

Answer:

a= 38.85

Step-by-step explanation:

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As a store manger you would like to find out the average time it takes to unload the truck which delivers the merchandise for yo
Georgia [21]

Answer:

The upper boundary of the 95% confidence interval for the average unload time is 264.97 minutes

Step-by-step explanation:

We have the standard deviation for the sample, but not for the population, so we use the students t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

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95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 34 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.975([tex]t_{975}). So we have T = 2.0322

The margin of error is:

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4 0
4 years ago
Read 2 more answers
Explanation and answer please :)
Juli2301 [7.4K]

$20,000 is between $15,000 and $49,999, so we'll use the interest rate of 6.5% (see row 3)

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We'll use the decimal form of the interest rate as it is most common for financial math problems.

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t = 1 year is the amount of time

We will plug those values into the formula

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i = P*r*t

i = 20000*0.065*1

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3 years ago
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Answer:

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Step-by-step explanation:

3^{-3}\\=\frac{1}{3}^{3}\\=\frac{1}{27}

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Step-by-step explanation:

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