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Sphinxa [80]
3 years ago
9

In a survey of 2,800 people who owned a certain type of​ car, 560 said they would buy that type of car again. What percent of th

e people surveyed were satisfied with the​ car?
Mathematics
1 answer:
STALIN [3.7K]3 years ago
3 0

20% people were satisfied with the car

Step-by-step explanation:

Percentage of a certain quanitity is calculated by using the following formula

Percentage=\frac{Quantity}{Total}*100

Given

Total people surveyed = 2800

People satisfied with the car = 560

So,

Percentage= \frac{560}{2800}*100\\=0.2*100\\=20\%

Hence,

20% people were satisfied with the car

Keywords: Percentage

Learn more about percentage at:

  • brainly.com/question/4034547
  • brainly.com/question/4054269

#LearnwithBrainly

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Please solve with explanation
mars1129 [50]

9514 1404 393

Answer:

  4 : 1

Step-by-step explanation:

Each segment joining midpoints is called a "midline." It is parallel to the segment not being joined, and is half its length. All the dimensions of the smaller triangle are half those of the larger triangle. (They are similar triangles.) The ratio of areas is the square of the ratio of side lengths:

  2² : 1² = 4 : 1 . . . . . . ratio of triangle areas

6 0
2 years ago
Help needed! Can I get some help with two questions?
Elodia [21]

<u>Red</u>

This is a circle with center (h, k) at (0,0) and radius (r) = 6

Formula: (x - h)² + (y - k)² = r²

Answer: x² + y² = 36

***************************************

<u>Blue</u>

This is a circle with center (h, k) at (2,2) and radius (r) = 1

Formula: (x - h)² + (y - k)² = r²

Answer: (x - 2)² + (y - 2)² = 1

***************************************

<u>Green:</u>

This is a circle with center (h, k) at (-2,-2) and radius (r) = 1

Formula: (x - h)² + (y - k)² = r²

Answer: (x + 2)² + (y + 2)² = 1

***************************************

<u>Purple:</u>

This is an ellipse with center (h, k) at (0,-2) and radius on the x-axis (a) = 3 and radius on the x-axis (b) = 1

Formula: \frac{(x-h)^{2}}{a^{2}} +\frac{(y-k)^{2}}{b^{2}}=1

Answer: \frac{x^{2}}{9} +(y+2)^{2}=1

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<u>Black:</u>

This is a parabola with vertex (h, k) at (0,-6) and vertical stretch (a) = -1

Formula: y = a(x - h)² + k

Answer: y = -x² - 6


7 0
3 years ago
8. Let f(x) = 3x + 2 and g(x) = x - 3. Find f(x) - g(x) and state its domain.
Dvinal [7]
F(x) - g(x)
becomes
(3x + 2) - (x - 3)

which is
3x + 2 - x + 3

then add like terms
2x + 5

so f(x) - g(x) = 2x + 5
and it's domain should be all real numbers
7 0
3 years ago
QUESTION 20
atroni [7]

.Answer:

The answer is below

Step-by-step explanation:

The patient loses 1 kg every week for 5 weeks.

1 kg = 2.2 lbs

Therefore the patient loses 2.2 lbs every week for 5 weeks.

a) The weight of the patient after 5 weeks = 245 lbs. - (5 weeks)(2.2 lbs per week)

The weight of the patient after 5 weeks = 245 lbs. - 11 lbs. = 234 lbs.

b) The weight of the patient after 5 weeks = 245 lbs. - 11 lbs. = 234 lbs.

1 kg = 2.2 lbs.

234 lbs. = 234 lbs. * 1 kg per 2.2 lbs. = 106.36 kg

7 0
3 years ago
The width of a rectangle is 6 inches less than its length , and the area is 40 square inches what arebthe lenght and width of th
DaniilM [7]
Let l and l-6 be the length and width, respectively, of the rectangle. Then:
l(l-6)=40
l²-6l-40=0
(l-10)(l+4)=0
l=10,-4
The rectangle is 10" by 4". ☺☺☺☺
8 0
3 years ago
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