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Flauer [41]
3 years ago
10

A car originally cost $22,955. It is now being sold for $19,700. What is the percent change? Is it an increase of a decrease? Ro

und to the nearest percent
Mathematics
2 answers:
Lapatulllka [165]3 years ago
5 0

Answer:

-7.64

Step-by-step explanation:

Bezzdna [24]3 years ago
3 0

Answer:

The percent decrease is 14%.

Step-by-step explanation:

To answer this question you have to do percent change. To do this you have to do change/original, change divided by original. So the first thing that you have to do is subtract the smaller number from the bigger number. In the case of this problem 22,955 - 19,700. Once you do this you will get your change, 3,255. Then you want to do your change/original, 3,255/22,955 and divide. On you do this you are probably going to get a weird decimal place. In ths problem you get 0.141799172... So what you are going to do is multiply at weird decimal by 100. This will give you your percent, 14.1799172. Then you can round that to whatever you need it to be. For this problem you get 14%.

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5. What is the total surface area of the figure below?<br>6 cm<br>7 cm<br>13.1 cm​
zhannawk [14.2K]

Answer:

550.2cm

Step-by-step explanation:

6 cm x 7 cm x 13.1 cm = 550.2 cm

8 0
3 years ago
You own a small storefront retail business and are interested in determining the average amount of money a typical customer spen
Inga [223]

Answer:

Step-by-step explanation:

Hello!

The Confidence intervals for the population mean to follow the structure "point estimation"±" margin of error"

You as the store owner took a sample to determine the average amount of money a typical customer spends on your shop.

n= 26 customers.

X[bar]= $77.506

S= $11.0714

Assuming the variable X: the amount of money spent by a typical customer has a normal distribution and that there is no information about the population standard deviation, the best statistic to use for this estimation is a Students-t:

[X[bar] ± t_{n-1;1-\alpha /2} * \frac{S}{\sqrt{n} }]

t_{n-1; 1-\alpha /2}= t_{25; 0.995}= 2.787

The margin of error of the interval is:

d= t_{n-1;1-\alpha /2} * \frac{S}{\sqrt{n} }

d= 2.787 * \frac{11.0714}{\sqrt{26} }

d= 6.051

I hope it helps!

4 0
4 years ago
A container of motor oil has a volume of 4000 cubic centimeters. How many
Goshia [24]

Answer:

It holds approximately 4 litres in accent

Step-by-step explanation:

In terms, 1 litre = 1000 cubic centimetres.

-----------------------------------------

Therefore, to find How many liters of oil the container hold. Divide 4000 cubic centimeters by 1000.

⟼ 4000 ÷ 1000

⟼ 4

Therefore, 4000 cubic centimeters volume of oil holds 4L of oil

7 0
2 years ago
Read 2 more answers
Explain the relationship between the legs and the hypotenuse of a right triangle.
KATRIN_1 [288]

Answer:

Step-by-step explanation:

a right triangle and hypotenuse consist of two legs. the two legs meet at a 90 degrees angle and the hypotenuse is the longest side of the right triangle

4 0
4 years ago
1. Name the formula for the Law of Sines? Can it be written any other way? What do the letters stand for? When you are solving t
EastWind [94]

Answer:

see explanation

Step-by-step explanation:

The formula for the Sine rule is

\frac{a}{sinA} = \frac{b}{sinB} = \frac{c}{sinC}

Where a, b and c are the sides of a triangle and A, B , C are the angles opposite the corresponding sides, that is

A is opposite side a, B is opposite side b, C is opposite side c

The sine rule is usually applied using a pair of the ratios, where

2 sides and an angle are known to find an unknown angle.

1 side and 2 angles are known to find an unknown side.

----------------------------------------------------------------------------------

2

There are 2 forms of the Cosine rule

(a) a² = b² + c² - (2bc cosA ) ← to calculate an unknown side

(b) cosA = \frac{b^2+c^2-a^2}{2bc} ← to calculate an unknown angle

(a) is used given 2 sides of a triangle b and c are known with A being the included angle ( the angle between the 2 sides )

(b) is used when the 3 sides a, b and c are known

----------------------------------------------------------------------------------

3

If the angle A = 90° then cos90° = 0 and formula (a) becomes

a² = b² + c² ← that is Pythagoras' identity

4 0
3 years ago
Read 2 more answers
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