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3 years ago

Cost of CD $14.50 markup 30%

Mathematics

1 answer:

zhenek [66]3 years ago

8 0

14.50 x .30 = 4.35
14.50 + 4.35 = $18.85 if that is what you are looking for.

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The owner of a automobile repair center purchased new electronic diagnostic equipment for $12000. He paid 10 precent down and th

jek_recluse [69]

<span>The owner of a automobile repair center purchased new electronic diagnostic equipment for $12000. He paid 10 pERcent down and then paid 60 pAYMENTS monthly of $203.81.

Net loan, P=12000*0.9=10800
Monthly payment, A=203.81
Number of payments, n=60

Let i=APR

A=P(i/12*(1+i/12)^n)/((1+i/12)^n-1)
Substituting values
203.81=10800(i/12*(1+i/12)^60)/((1+i/12)^n-1)

=>
12*203.81/10800=i(1+i/12)^60/((1+i/12)^60-1)

To solve for i, we form the iterative equation:
</span>(1+i/12)^60=(12*203.81/10800)/i*((1+i/12)^60-1)
i=12*(12*203.81/10800*((1+i/12)^60-1)/i)^(1/60-1)
try i=0.05,
f(0.05)=0.05
Therefore the APR is 5%

8 0

3 years ago

The graph below shows the numbers of visitors at a museum over six days.

Bingel [31]

Answer:

(a) 305 visitors (b): Saturday to Sunday

5 0

3 years ago

At the local dairy farm, Kareem buys a 32-oz container of yogurt for $2.56. Jonah buys a 6-oz container of yogurt for $0.48. Are

vodka [1.7K]

Answer:

Yes, the cost $y$ in dollars and the amount of yogurt $x$ are proportional.

The equation is: $y=0.08x$

Step-by-step explanation:

1. If $y$ varies directly as $x$ , you can write it as following:

$y=kx$

Where $k$ is the constant of proportionality.

2. Let's calculate the value of the constant of proportionality. If $y=2.56$ and $x=32$ , you have:

$y=kx\\k=\frac{y}{x}\\k=\frac{2.56}{32}\\k=0.08$

3. Then, the equation is:

$y=0.08x$

4. Let's verify if they are directly proportional. Substitute $x=6$ which is the amount of yogurt bought by Jonah. The result must be $0,48:

$y=0.08(6)\\y=0.48$

5. They are directly proportional.

6 0

4 years ago

Read 2 more answers

What is the formula for a cone in geometry

deff fn [24]

V=pie r square h/3
Hope you get the picture!

7 0

3 years ago

Read 2 more answers

Corey spies a bald eagle in a tall tree. He estimates the height of the tree to be 60 feet and the angle of elevation to the bir

pogonyaev

Answer:

Corey stepped back 59.71 feet

Step-by-step explanation:

Right Triangles

They are a special type of triangle where one of its internal angles is 90°. The basic trigonometric equations stand in this type of triangles. If x is the adjacent leg of a given angle , and y is the opposite leg to the same angle, then :

$tan0= \frac{y}{x}$

We can solve for x to get

$x = \frac{y}{tan0}$

Corey estimates the height of the tree to be 80 feet. This means we know y=80 and . Let's find the horizontal distance at which Corey is looking at the bald eagle:

$x1 =\frac{80}{tan68}$

$x1 = 32.32 feet$

Now Corey moves back to watch the very same tree at an elevation angle of 41°. The tree has the same height, so

$x2 =\frac{80}{tan41}$

$x2= 93.03 feet$

Now we can know the distance Corey walked back by subtracting both distances

<em>correy stepped back 59.71 feet</em>

4 0

3 years ago