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frozen [14]
1 year ago
8

In a random sample of 200 cars of a particular model,

Mathematics
1 answer:
Aleks04 [339]1 year ago
8 0

By using proportions, We expect 150 defects out of the 10,000 cars if the 3 defects out of the 200 cars sampled is representative of all 10,000 cars.

Option A is correct.

First, let's set up the proportions.

A proportion is an equation in which two ratios are set equal to each other.

We have 3/200 cars with defects and we want to know X for X/10000.

So 3/200 = X/10000

Now solve for X.

3/200 = X/10000

X = \frac{3}{200} \times 10000

X = 150

So the answer is: We expect 150 defects out of the 10,000 cars if the 3 defects out of the 200 cars sampled is representative of all 10,000 cars.

Option A is correct.

Find out more information about proportions here

brainly.com/question/11609816

#SPJ4

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Manny worked all summer to save money. Now he has $150 with which he wants to buy a digital music player and as many songs as he
True [87]

Answer:

Step-by-step explanation:

Total amount of Money saved by Manny is $150. He wants to buy a digital player with it.

The digital music player costs $89, and each song costs $0.99. Let x represent the number of songs that he can afford. This means that the cost of x songs would be

89 + 0.99x

If Manny spends no more than $150, before tax, the number of songs that he can buy will be

89 + 0.99x = 150

0.99x = 150 - 89 = 61

x = 61/0.99 = 61.6

He can buy 61 songs

8 0
3 years ago
Write a real-world problem to compare fractions.then solve the problem
andrew11 [14]

The fraction computed shows that the total quantity of meat that Joy bought is 5/6kg.

<h3>How to solve the fraction?</h3>

The fraction can be explained thus: Joy bought 1/2kg of meat from a store and bought 1/3kg of meat from store B. What is the total quantity of meat that Joy bought?

The total quantity of meat that Joy bought will be:

= 1/2 + 1/3

= 5/6

In conclusion, the correct option is 5/6kg.

Learn more about fractions on:

brainly.com/question/78672

6 0
2 years ago
Which equation represents grants path? <br>A. y=2-4x<br>B. y=4-x/2<br>C. y=6-x/4<br>D. y=8-2x​
EleoNora [17]

Answer:

C.

Step-by-step explanation:

recall that the point-slope form of a linear equation is given by

y = mx + c

Rearranging so that it is in the same form as the answer choices, we get

y = c + mx

where m is the slope and c is the y-intercept

we note the following observations

1) The line goes from top left to bottom right, this means that the slope is negative, hence m has to be negative. (in our case, all the choices have negative x)

2) The line crosses the y-axis at y = 4, this means the y-intercept is 4 and hence c = 4.

If we look at the choices, only choice B satisfies both observations (that m is negative and c = 4)

6 0
3 years ago
Read 2 more answers
A jogger runs a distance of six miles at an average speed of four miles an hour, how many minutes did this take him?
BARSIC [14]

1.5 hours i am pretty sure

4 0
3 years ago
Read 2 more answers
which graph represnts a line with a slope ot -2/3 and a y-intercept equal to that of the line y=2/3x-2?
tia_tia [17]
The graph will be as shown in attached figure

4 0
3 years ago
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