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Kipish [7]
3 years ago
9

at a store , sales tax is charged at a rate of 2% on the cost price of an item. the sales taxon a dress which cost $180 is?

Mathematics
1 answer:
zhuklara [117]3 years ago
4 0

Answer:

180(0.02) = $3.6 is the sales tax

Step-by-step explanation:

2% = 0.02 Decimals make it easier for calculation rather than percentages.

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7. The lifetime of a certain brand of tires is approximately normally distributed, with a
Aleonysh [2.5K]

Answer:

0.0025551

Step-by-step explanation:

Given that:

Mean (m) = 40000

Standard deviation (s) = 2500

P(x < 33,000) :

USing the relation to obtain the standardized score (Z) :

Z = (x - m) / s

Z = (33000 - 40000) / 2500 = - 2.8

p(Z < -2.8) = 0.0025551 ( Z probability calculator)

Probability of Tyre wagering out before mileage limit is reached = 0.0025551

7 0
2 years ago
A train travels 91 kilometers in 2 hours, and then 97 kilometers in 3 hours. What is its average speed?
Andrei [34K]
I think the average spend is 11 km. i don't know for sure..
6 0
3 years ago
Prove the following statement.
gayaneshka [121]

Answer:

You can prove this statement as follows:

Step-by-step explanation:

An odd integer is a number of the form 2k+1 where k\in \mathbb{Z}. Consider the following cases.

Case 1. If k is even we have: (2k+1)^{2}=(2(2s)+1)^{2}=(4s+1)^{2}=16s^2+8s+1=8(2s^2+s)+1.

If we denote by m=2s^2+2 we have that (2k+1)^{2}=8m+1.

Case 2. if k is odd we have: (2k+1)^{2}=(2(2s+1)+1)^{2}=(4s+3)^{2}=16s^2+24s+9=16s^{2}+24s+8+1=8(2s^{2}+3s+1)+1.

If we denote by m=2s^{2}+24s+1 we have that (2k+1)^{2}=8m+1

This result says that the remainder when we divide the square of any odd integer by 8 is 1.

6 0
3 years ago
Describe a capricormus constellation ​
Helen [10]

Answer and Step-by-step explanation:

Capricornus is a zodiac thing. Its name is Latin and it means "horned goat" or "goat horn" or "having horns like a goat's", it is something along those lines. It is commonly represented in the form of a sea goat.

6 0
3 years ago
a truck is rented at 40$ per day plus a charge per mile use. The truck traveled 15 miles in one day, and the total charge was 11
Alla [95]

Answer:

15x + 40 = 115

We set the equation to 115 because the total cost is $115.

We add the "+ 40" because of the $40 to rent the trailer for the day.

The 15x is because it represents the miles per hour (x) times the number of hours.

The number of hours times the charge per mile, plus the $40 to rent it, will equal $115.

Hope this helps!!

5 0
3 years ago
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