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Ostrovityanka [42]
3 years ago
5

Shorty’s Muffler advertises it can install a new muffler in 30 minutes or less. However, the work standards department at corpor

ate headquarters recently conducted a study and found that 20% of the mufflers were not installed in 30 minutes or less. The Maumee branch installed 50 mufflers last month. If the corporate report is correct: How many of the installations at the Maumee branch would you expect to take more than 30 minutes?
Mathematics
1 answer:
pav-90 [236]3 years ago
7 0

Answer:

The installations at the Maumee branch would you expect to take more than 30 minutes is 10.

Step-by-step explanation:

Consider the provided information.

Let x is the installations at the Maumee branch take more than 30 minutes.

The work standards department at corporate headquarters recently conducted a study and found that 20% of the mufflers were not installed in 30 minutes or less.

Therefore, π=0.20

The Maumee branch installed 50 mufflers last month.

Thus, n=50

Mean of the distribution: μ=nπ

Substitute the respective values in the above formula.

μ=(50)(0.20)

μ=10

Hence, the installations at the Maumee branch would you expect to take more than 30 minutes is 10.

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Two teams are selling candy bars to raise money. Team A has $165 saved and they are selling each candy bar for $2. Team B has $7
devlian [24]

Answer: Each have to sell 91 candy bars to have the same amount of money.

Step-by-step explanation: Suppose x represents the amount of candy bars.

Team A already have $165 and they are selling each candy bar for $2. The mathematical equation that represents the amount of money they have is

A: 165 + 2x

Team B initially has $74 and will sell each candy bar for $3. Then, the mathematical equation representing their amount of money is

B: 74 + 3x

So, to have the same amount of money:

165 + 2x = 74 + 3x

x = 165 - 74

x = 91

<u>Teams A and B will have the same amount of money when each of them </u><u>sell 91 candy bars</u>.

6 0
2 years ago
I need help ASAP thanks!!
Genrish500 [490]

Theorem

The measure of an exterior angle of a triangle equals the sum of measures of the remote interior angles.


Angle STV is an exterior angle of triangle SRT.

The two remote interior angles to exterior angle STV are angles S and R.

Since the triangle is isosceles, with sides ST and TR equal, angles S and R are equal, so they both measure 27 deg.


<STV = 27 + 27


<STV = 54

8 0
3 years ago
A textbook store sold a combined total of 289 sociology and math textbooks in a week. The number of math textbooks sold was 65 l
erica [24]

Answer:

Contradictrion

Step-by-step explanation:

First write an equation. If the total is 289, then that goes one the right side of the =. Sociology textbooks will be x. If there were 65 less than x, it will be 65-x. Lets set it up:

x + 65 -x =289

Then combine like terms.

65 = 289

There are no values of x that make the equation true. The input is a contradiction.

<u></u>

<h2><u>NO ANSWER</u></h2>
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Helen [10]

1. The answer is 0.425

2. the answer is 0.425

3. the answer is 0.2125

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3 years ago
An airplane flying from los angeles to NYC losess both engines and all steering controols at 10,000 ft of altatude it falls at a
liubo4ka [24]

Answer:

20 min i hope this answers helps u

Step-by-step explanation:

10000÷500=20

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2 years ago
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