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3 years ago

A pair of jeans costs $40 and sales tax is 5%?how much is the total bill?

Mathematics

2 answers:

Kruka [31]3 years ago

6 0

$42. $40 x 1.05 (the whole 40 dollars plus five percent tax)

spin [16.1K]3 years ago

5 0

42$ because 10 % is 4 dollars so that 5% cut that 4 in half witch made it 2

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Five students wrote a mathematics test. The average mark was 68. If the marks for four of the students were 75, 62, 84 and 53, t

konstantin123 [22]

Answer:

Step-by-step explanation:

Use the formula for the mean of a set of numbers:

sum of the numbers

average = --------------------------------

count of numbers

Here we know that the average mark was 68, so we can write:

75 + 62 + 84 + 53 + x

average = 68 = ----------------------------------

or 274 + x

68 = -------------------

Solving for x, we multiply both sides by 5: 340 = 274 + x.

Subtracting 274 from both sides effectively isolates x:

340 = 274 + x

- 274 -274

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66 = x

The fifth student's mark was 66.

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2 years ago

Someone please help

KIM [24]

Answer:

Step-by-step explanation:

Exponential function representing final amount with compound interest compounded continuously,

$A=Pe^{rt}$

Here, A = Final amount

P = principal amount

r = Rate of interest

t = Duration of investment

For P = $9600

r = 6%

A = 2 × 9600 = $19200

By substituting these values in the formula,

$19200=9600(e)^{0.06\times t}$

$2=e^{0.06t}$

$ln(2)=ln(e^{0.06t})$

ln(2) = 0.06t

t = $\frac{0.693147}{0.06}$

t = 11.55245

t ≈ 11.5525 years

Any amount will get doubled (with the same rate of interest and duration of investment) in the same time.

Therefore, $960000 will get doubled in 11.5525 years.

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3 years ago

How do I round 0.33375

nirvana33 [79]

Answer: to the tenth place: 0.3

To the hundredth place: 0.33

Thousandths: 0.334

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Step-by-step explanation:

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vovangra [49]

Answer:

Step-by-step explanation:

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