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2 years ago

21. Tom buys a DVD player on 12 monthly payments. The cash price is $600. He pays

Mathematics

1 answer:

slamgirl [31]2 years ago

8 0

Answer:

Each monthly payment is $ 49.05, and in total Tom paid $ 648.60.

Step-by-step explanation:

Given that Tom buys a DVD player on 12 monthly payments, whose cash price is $ 600, and he pays a 10% deposit and the store charges 9% interest, to determine how much is each payment and the total amount Tom pays for the DVD player the following calculations must be performed:

600 - 600 x 0.1 = 540

540 x 1.09 = 588.6

588.6 / 12 = 49.05

Thus, each monthly payment is $ 49.05, and in total Tom paid $ 648.60.

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Find the cost of 25 shares of stock at 11 1/4 per share

musickatia [10]

I believe the answer is 2.222222222

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2 years ago

The volume of a cuboid is 176cm

IRISSAK [1]

Answer:

.08cm or 0.08cm

Step-by-step explanation:

First of all, we can see that 20mm is in millimeters, not centimeters.

If we convert the ones in centimeters to millimeters, it will result in decimals, which I want to avoid, but you could also do it that way.

There are 10 mm in 1 cm, so I multiply all of the values in cm by 10.

So now, we have that the volume is 1760mm, the length is 110mm, and the width is 20mm.

The formula for the volume of a cuboid is: $w*l*h = volume$

We have the width, length, and volume, so let's plug it in.

$20*110*h=1760$

To solve for h:

1. Multiply 20 and 100

$2200*h=1760$

2. Divide both sides by 2200

$h = 1760/2200$

3. Divide right side

h = 0.8

Keep in mind that this is in millimeters. In centimeters, it would be .08

6 0

2 years ago

HELP please!! ive tried doing this problem forever

Marizza181 [45]

PROBLEM 9:
0.25
PROBLEM 8:
3/14
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5 0

2 years ago

the times of all 15 year olds who run a certain race are approximately normally distributed with a given mean

Butoxors [25]

The percentage of the runners who have times less than 14.4 sec is 0.15%

The times of all 15-year old who run a certain race are approximately normally distributed with a given mean of 18 sec and a standard deviation of 1.2 sec.

We know that,

where,

X = raw score = 14.4

μ = mean = 18

σ = standard deviation = 1.2

Putting the values,

Finding the probability from the z score table, we get

P(z < -3) = 0.00135 = 0.135%

Disclaimer: The question is incomplete. Please read below to find the missing content.

Question: The times of all 15-year-olds who run a certain race are approximately normally distributed with a given mean of 026-1 = 18 seconds and a standard deviation of 026-2. = 1.2 sec. What percentage of the runners have times less than 14.4 seconds?

0.15%

0.30%

0.60%

2.50%

Learn more about percentages here brainly.com/question/809966

#SPJ4

8 0

1 year ago

Evaluate C(8, 2). 56<br> 28<br> 40,320<br> 20,160

algol13

Answer:

option B

Step-by-step explanation:

Given in the question,

C(8,2)

Formula to use

here n = 8

r = 2

We have to calculate combinations of 8 object taken 2 at a time, then

C(8,2)

8C2

8! / 2! * (8 - 2)!

$\frac{8*7*6*5*4*3*2*1}{2*1(6!)}$

$\frac{8*7*6*5*4*3*2*1}{2*1(6*5*4*3*2*1)}$

$\frac{8*7}2$

56/2

So, 8C2 = 28

3 0

2 years ago