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3 years ago

If there are 32 desks in the classroom and 25% of them are broken, how many

Mathematics

2 answers:

Anestetic [448]3 years ago

7 0

Answer: 8 of them are broken

garik1379 [7]3 years ago

6 0

Answer:

32 × 25

100

16 × 25

8 × 25

200

The answer is 8

Edit:-

i had made a calculation error in this answer...

i realised my mistake and corrected it...

im sorry for the inconvienience caused...

future readers of this answer, do not thank this answer, i dont deserve it...

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A map scale shows a scale of 1 inch = 50 miles. How many miles are represented by 4.5 inches on the map?

a_sh-v [17]

Answer:

Step-by-step explanation:

take 50*4.5 and you'll get your answer

7 0

2 years ago

Translate each of the following research questions into appropriate H0 and Ha.

Mandarinka [93]

Answer:

$H_{0}: \mu = 62500\text{ dollars per year}\\H_A: \mu > 62500\text{ dollars per year}$

$H_{0}: \mu = 2.6\text{ hours}\\H_A: \mu \neq 2.6\text{ hours}$

Step-by-step explanation:

We have to build appropriate null and alternate hypothesis for the given scenarios.

a) Population mean, μ = $62,500 per year

The market research wants to find whether the mean household income of mall shoppers is higher than that of the general population.

$H_{0}: \mu = 62500\text{ dollars per year}\\H_A: \mu > 62500\text{ dollars per year}$

We would use one-tail(right) test to perform this hypothesis.

b) Population mean, μ = 2.6 hours

The company want to know the average time to respond to trouble calls is different or not.

$H_{0}: \mu = 2.6\text{ hours}\\H_A: \mu \neq 2.6\text{ hours}$

We would use two-tail test to perform this hypothesis.

7 0

2 years ago

What’s the answer please help

noname [10]

Answer:

$\boxed{\text{A. }\math{\left \{ x \, | \, x \in \mathbb{R}, x < -2 \right \}}}}$

Step-by-step explanation:

The open circle means that the point is not included in the solution set, and the arrow pointing left means that all numbers less than -2 are members.

In set-builder notation, each term has a special meaning. The braces enclose the members of the set.

Here's how you translate the notation,

$\begin{array}{rcl}\\\left \{ & = & \text{The set of}\\x & = & \text{all x values}\\| & = &\text{such that}\\x & = & x\\\in & = &\text{is a member of}\\\mathbb{R}, & = &\text{all real numbers, and}\\x < -2 & = & \text{x is less than -2}\\\end{array}\\\text{The answer is }\boxed{\textbf{A. }\mathbf{\left \{ x \, | \, x \in \mathbb{R}, x < -2 \right \} }}}$

3 0

3 years ago

A || b what’s the value of X?

Anna007 [38]

<h3>Answer:</h3>

The value of x is 17.

<h3>Step-by-step explanation:</h3>

We know that the lines are parallel because it is given that:

a ∥ b

Now, let's form an equation.

=> 2x + 5 + 8x + 5 = 180

Let's solve!

=> 10x + 10 = 180
=> 10x = 170
=> x = 17

Hence, the value of x is 17.

$BrainiacUser1357$

4 0

2 years ago

1 5/8 ÷ (−1 3/5)......plx help thx ....xd

attashe74 [19]

75/-104... .............

3 0

3 years ago