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irakobra [83]
3 years ago
6

If a car factory checks 360 cars and 8 have defects, how many will have defects out of 1260?

Mathematics
1 answer:
saul85 [17]3 years ago
6 0

Answer:

We can expect  28  defected cars.

Step-by-step explanation:

Let us assume that the defected cars are  "uniformly distributed"  in the total set of cars.

Then we can write the proportion  8%2F360 = x%2F1260  for the unknown amount  x  of defected cars among  1260  cars.

Solving the proportion for  x  you get

x = 8%2A1260%2F360 = 8%2A3.5 = 28.

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Which equation describes a line perpendicular to the line described by y= 1/2x -5?
Aneli [31]

Answer:

y= 2/1x -5

Step-by-step explanation:

flip it!

7 0
3 years ago
A sports stadium has 10000 seats, divided into box seats, lower-deck seats, and upper-devk seats. Box seats sell for 10 dollars,
lesantik [10]

Answer:

Number of box seats = 1000

Number of lower deck seats = 5000

Number of upper deck seats = 4000

Step-by-step explanation:

Let number of box seats = x

Let number of lower deck seats = y

Let number of upper deck seats = z

As per question statement:

x+y+z=10000 ...... (1)

Cost for box seat = $10

Cost for x box seats = 10x

Cost for lower deck seat = $8

Cost for y lower deck seats = 8y

Cost for lower deck seat = $5

Cost for z lower deck seats = 5z

As per question statement:

10x+8y+5z=70000 ..... (2)

z = 4x ..... (3)

Putting value of y in (1) and (2):

x+y+4x=10000\\\Rightarrow 5x+y=10000 ....... (4)

10x+8 y+5\times 4x=70000\\\Rightarrow 30x+8y=70000 ..... (5)

8 \times (4) - (5):

10x =10000

\Rightarrow x = 1000

By (3):

z = 4000

Now, by equation (1):

y = 5000

Number of box seats = 1000

Number of lower deck seats = 5000

Number of upper deck seats = 4000

6 0
3 years ago
The slope of the line that passes through the points (-10,y) and (5, 2) is 2/5. What is the value of y?
Murrr4er [49]

Answer:

C, -4

Step-by-step explanation:

slope=change in y/change in x

\frac{2 - y}{5 - ( - 10)}  =  \frac{2}{5}

\frac{2 - y}{5  + 10}  =  \frac{2}{5}

multiply both sides by 2/5

2 - y =  \frac{2}{5} (5 + 10)

simplify the right side. 2/5 × 5 = 2 and 2/5 × 10 = 4

2 - y = 2 + 4

2 - y = 6

bring y to the other side by adding y on both sides

2 = 6 + y

subtract 6 on both sides

2 - 6 = y

so y is -4

7 0
1 year ago
Jaime bikes 5 1/4 miles on Monday 6 7/8 miles on Tuesday and 8 1/2 miles on Wednesday if he continue the pattern how many miles
Shtirlitz [24]

<span>11 2/8  there is a 1 5/8 between each of them so you keep adding 1 5/8 miles each day.</span>
8 0
3 years ago
No fakes please!<br> Ill give brainliest!!!
Andreas93 [3]

Step-by-step explanation:

1. 5/8 = 62.5%

2. 1/5 = 20%

3. 4 2/3 = 4.66%

8 0
2 years ago
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