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garik1379 [7]
3 years ago
14

The value of a new car decreases by 10% in the first year. How much will a car be worth after one year if it’s initial value was

$40,000?
Mathematics
1 answer:
yan [13]3 years ago
5 0

Answer:

$36000

Step-by-step explanation:

$40 000(0.10) = $4000

$40000 - $4000 = $36000

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you are riding a bicycle which has tires with a 25-inch diameter at a steady 15-miles per hour, what is the angular velocity of
motikmotik

Answer:

The angular velocity is 6.72 π radians per second

Step-by-step explanation:

The formula of the angular velocity is ω = \frac{v}{r} , where v is the linear velocity and r is the radius of the circle

The unit of the angular velocity is radians per second

∵ The diameter of the tire is 25 inches

∵ The linear velocity is 15 miles per hour

- We must change the mile to inch and the hour to seconds

∵ 1 mile = 63360 inches

∵ 1 hour = 3600 second

∴ 15 miles/hour = 15 ×  \frac{63360}{3600}

∴ 15 miles/hour = 264 inches per second

Now let us find the angular velocity

∵ ω = \frac{v}{r}

∵ v = 264 in./sec.

∵ d = 25 in.

- The radius is one-half the diameter

∴ r = \frac{1}{2} × 25 = 12.5 in.

- Substitute the values of v and r in the formula above to find ω

∴ ω = \frac{264}{12.5}

∴ ω =  21.12 rad./sec.

- Divide it by π to give the answer in terms of π

∴ ω = 6.72 π radians per second

The angular velocity is 6.72 π radians per second

3 0
3 years ago
Alma is changing the shape of her backyard from 150 feet long by 62 feet wide to a square that has the same area. What is the pe
umka2103 [35]
Hey there!
Here's your answer: the perimeter of the redone yard would be ~193 feet

Hope this helps!
6 0
3 years ago
What is the value of y in the following system?<br> Y= 3x-5<br> 6x + 3y= 15
nalin [4]
X = 2
y = 1

You can get this by replacing the y in the second equation with the 3x - 5 from the first. Then solve for x. Once you have that value, you can solve for y. 
7 0
3 years ago
PLEASE HELP ASAP !!!!!
WINSTONCH [101]

Answer:

D

Step-by-step explanation:

11 per 1,000

8 0
3 years ago
Read 2 more answers
Two less than six times a number is the same as thirteen more than a number. Find the number.​
NNADVOKAT [17]
6x - 2 = x + 13
Subtract x
5x - 2 = 13
Add 2
5x = 15, x = 3
Solution: the number is 3
6 0
3 years ago
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