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zheka24 [161]
3 years ago
14

You were shopping for a Christmas present. You found the item on sale for 20% off. Tax is 8%. If the original price was $450, ho

w much will the gift cost? Show all work.
Mathematics
1 answer:
klio [65]3 years ago
4 0

Answer:

Cost\ of\ gift=\$ 388.8

Step-by-step explanation:

Original Price=\$450

Discount:

Discount=20\%

20\%\ of\ 450=\frac{20}{100}\times 450=90\\\\Discounted\ Price=450-90=\$360

Tax:

Tax=8\%

8\%\ of\ 360=\frac{8}{100}\times 360=28.8\\\\Final\ cost=360+28.8=\$388.8

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Classify each number below as an integer or not. Thanks!
netineya [11]

Answer:

1. Yes

2. No

3. Yes

4. Yes

5. No

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

5 0
3 years ago
Read 2 more answers
We draw a random sample of size 25 from a normal population with variance 2.4. If the sample mean is 12.5, what is a 99% confide
Helen [10]

Answer:

<h2>11.2≤\mu12.8 </h2>

Step-by-step explanation:

Confidence interval for the population mean is expressed by the formula;

CI = xbar ± Z(S/√n) where;

xbar is the sample mean = 12.5

Z is the z score at 99% confidence = 2.576

S is the standard deviation = √variance

S = √2.4 = 1.5492

n is the sample size = 25

Substituting the given values into the formula given above,

CI = 12.5 ± 2.576(1.5492/√25)

CI = 12.5 ± 2.576(0.30984)

CI = 12.5 ± 0.7981

CI = (12.5-0.7981, 12.5+0.7981)

CI = (11.2019, 12.7981)

Hence the 99% confidence interval for the population mean is 11.2≤\mu12.8 (to 1 decimal place)

7 0
3 years ago
Happy birdday. Ur present is 50 pts u frick
In-s [12.5K]

Answer: wait it’s my birthday

Step-by-step explanation: free points for meh :p

7 0
3 years ago
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What is 0.45 expressed as a decimal with a line over 5
antiseptic1488 [7]

Answer:

.45/5 converted to a decimal is 0.09

Step-by-step explanation:

I'm not sure what you mean by "with a line over 5" so I just thought u meant with 5 as the denominator

7 0
3 years ago
What is the prime factor of 236​
grin007 [14]

Answer:

Step-by-step explanation:

prime factorization calculator of 326

Positive Integer factors of 326 = 2, 163, 326 divided by 2, 163, gives no remainder. They are integers and prime numbers of 326, they are also called composite number.

326 is a composite number.

Prime factorization: 326 = 2 x 163.

The exponents in the prime factorization are 1 and 1. ...

Factors of 326: 1, 2, 163, 326.

Factor pairs: 326 = 1 x 326 or 2 x 163.

326 has no square factors that allow its square root to be simplified.

8 0
3 years ago
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