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3 years ago

Two Fifths Of The Instruments in the Marching Band Are Brass, One third are Percussion, and the rest are Woodwinds. What Fractio

n of the Band is Woodwinds?

Mathematics

1 answer:

julsineya [31]3 years ago

3 0

$1 - \frac{2}{5} - \frac{1}{3} = \frac{15}{15} - \frac{6}{15} - \frac{5}{15} = \frac{15-6-5}{15} = \boxed {\frac{4}{15} }$

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Yesterday tyler ate lunch at his local diner. the bill for his meal came to 8.40, it including sales tax. tyler wants to leave a

Andre45 [30]

Your answer is $1.26
You can solve this problem with or without a calculator, and I don't know if you're allowed one or not so I'll show you both ways

Calculator:
The easiest way to find percentages of values on the calculator is to use the decimal multipliers, which are just the decimal value of the percentage. For example, 50% would be 0.5, 75% would be 0.75 etc. The decimal value of 15% is 0.15, so you would do 8.40 × 0.15 = 1.26

Non-Calculator:
This is a bit longer, but gives you the same answer. To solve without a calculator, you first divide 8.40 by 10 to find 10%, which is 0.84. Now you can divide that by 2 to find 5%, which would be 0.42, and then you add the two values (because 10% + 5% = 15%) to get 1.26

I hope this helps!

4 0

4 years ago

In testing the hypotheses H 0 colon space mu space equals space 800 space v s. space H 1 colon space mu not equal to space 800,

steposvetlana [31]

Answer:

The p-value is 0.0802.

Step-by-step explanation:

The hypothesis for a test is defined as:

H₀: μ = 800 vs. Hₐ: μ ≠ 800

A two tailed test for the population mean can be performed using a z-test or a t-test.

A z-test is used if the data provided has information related to the population standard deviation and the sample size is large, i.e. n > 30.

And if the population standard deviation is not known and the sample size is small, then the t-test will be used.

Since there is no information about either the population standard deviation or the sample size, assume that z-test is used.

The test statistic value is:

z = 1.75

Compute the p-value of the test as follows:

$p-value=2\times P(Z>z)\\$

$=2\times (1-0.9599)\\=2\times 0.0401\\=0.0802$

*Use a z-table for the probability.

Thus, the p-value is 0.0802.

6 0

3 years ago

PLEASE HELP ME

Ratling [72]

The answer should be 2.5, because you are cutting the value that they gave you in half

8 0

4 years ago

What is the negation of the follwoing conditional statement? "If a parallelogram has four congruent sides then it is a rhombus".

Kamila [148]

Negation...means put " not " in both the hypothesis and conclusion

if a parallelogram DOES NOT have 4 congruent sides, then it is NOT a rhombus.

3 0

4 years ago

Read 2 more answers

Identify the domain and range of the relation. Use a

vagabundo [1.1K]

Answer:

Domain = {3,4,9}

Range = {2, 6, 8, 9.5}

Given relation is NOT a function.

Step-by-step explanation:

Given relation is relation is ((9,6), (3,8),(4,9.5), (9,2)}.

Now we need to determine if given relation is a function or not.

We also need to find the domain and range.

((9,6), (3,8),(4,9.5), (9,2)}

Domain is basically the collection of x-values

So Domain = {3,4,9}

Range is basically the collection of y-values

So Range = {2, 6, 8, 9.5}

Since given relation contains repeated x-value "9".

So the given relation is NOT a function.

7 0

4 years ago