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sdas [7]
3 years ago
10

An equallon for the depreciation of car is given by y = A * (1 - t) ^ t where y = current value of the car, A = original cost, r

depreciationand , in years. The current value of a car is \$12.282.50 . The car originally cost \$20,000 and depreciates at a rate of 15% per year. How old is the car? f = time
Mathematics
1 answer:
Norma-Jean [14]3 years ago
4 0

Answer: 3 years

Step-by-step explanation:

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A jewelry store is featuring a diamond in the shape of a square pyramid. The side length of
BARSIC [14]

Answer:

128√5/3 mm³

Step-by-step explanation:

Since we are not told what to find, we can as well look for the volume of the pyramid

Volume of a square pyramid: V = (1/3)a²h

a is the side length of the square

h is the height of the pyramid

Given

a = 8mm

l² = (a/2)² + h²

l² = (a/2)² + h²

6² = (8/2)² + h²

h² = 6² - 4²

h² = 36 - 16

h² = 20

h = √20

Volume of a square pyramid =  (1/3)*8²*√20

Volume of a square pyramid = 1/3 * 64 * 2√5

Volume of a square pyramid = 128√5/3 mm³

7 0
3 years ago
What is the solution of the equation 4[x + 2(3x – 7)] = 22x – 65?
Lelu [443]
X = -3/2
I hope my work .... helped you out a little.

3 0
3 years ago
Read 2 more answers
Dennis decided he wanted to go to the carnival. The carnival charges $6.00 for entry and $1.50 for each ride.
myrzilka [38]

We want to create a linear equation to model the given situation.

A) c(r) = $6.00 + $1.50*r

B) 19 rides.

We know that the carnival charges $6.00 for entry plus $1.50 for each ride.

A) With the given information we can see that if you ride for r rides, then the cost equation will be:

c(r) = $6.00 + $1.50*r

Where c(r) is the cost for going to the carnival and doing r rides.

B) If you have $35.00, then we can solve:

c(r) = $35.00 =  $6.00 + $1.50*r

Now we can solve the equation for r.

$35.00 =  $6.00 + $1.50*r

$35.00 -  $6.00 = $1.50*r

$29.00 = $1.50*r

$29.00/$1.50 = r = 19.33

Rounding to the next whole number we get: r = 19

This means that with $35.00, Dennis could go to 19 rides.

If you want to learn more, you can read:

brainly.com/question/13738061

7 0
3 years ago
An equation of a trend line for the scatter plot below is y=42x+50. Predict how many more sales the store makes in December than
Alexxx [7]

Answer: 42 more sales in December

8 0
3 years ago
A person works full time and gets paid $1,240 semi-monthly. Determine the annual
Ierofanga [76]

At first we should calculate Monthly income by multiplying 2 then After multiplying by 12 to calculate Annual income

7 0
2 years ago
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