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Viktor [21]
3 years ago
8

The tax rate is 3.9%. What is the tax on $42?

Mathematics
2 answers:
MArishka [77]3 years ago
7 0

Answer:

1.64

Step-by-step explanation:

To find the tax, multiply the cost by the tax rate

42 * 3.9%

Change to decimal form

42 *.039

1.638

Round to the nearest cent

1.64

grigory [225]3 years ago
3 0

Answer:

$43.64

Step-by-step explanation:

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Which expressions are equivalent to the expression 7(5 + m) - 8?
Akimi4 [234]

Answer:

<u>2</u><u>7</u><u> </u><u>+</u><u> </u><u>7</u><u>m</u>

Step-by-step explanation:

7(5 + m) - 8

open the bracket:

= 35 + 7m - 8 \\  = 27 + 7m

3 0
2 years ago
The centers for disease control and prevention reported that 25% of baby boys 6-8 months old in the united states weigh more tha
melisa1 [442]

Answer:

0.1971 ( approx )

Step-by-step explanation:

Let X represents the event of weighing more than 20 pounds,

Since, the binomial distribution formula is,

P(x)=^nC_r p^r q^{n-r}

Where, ^nC_r=\frac{n!}{r!(n-r)!}

Given,

The probability of weighing more than 20 pounds, p = 25% = 0.25,

⇒ The probability of not weighing more than 20 pounds, q = 1-p = 0.75

Total number of samples, n = 16,

Hence, the probability that fewer than 3 weigh more than 20 pounds,

P(X

=^{16}C_0 (0.25)^0 (0.75)^{16-0}+^{16}C_1 (0.25)^1 (0.75)^{16-1}+^{16}C_2 (0.25)^2 (0.75)^{16-2}

=(0.75)^{16}+16(0.25)(0.75)^{15}+120(0.25)^2(0.75)^{14}

=0.1971110499

\approx 0.1971

3 0
3 years ago
A youth group earns $600 for charity and decides to put it in a bank. Calculate the amount of money the group will have for each
igomit [66]

Based on the types of compounding and the interest rates, the following are true:

  • Part A - The group will have $750
  • Part B - The group will have $759.19

When using simple interest, the amount the group will have is:

<em>= Amount x ( 1 + rate x number of years )</em>

= 600 x ( 1 + 5% x 5)

= $750

When using compound interest, the group will have:

<em>= Amount x ( 1 + rate) ^ Number of years</em>

= 600 x ( 1 + 4%)⁶

= $759.19

In conclusion, compound interest yields more.

<em>Find out more about </em><em>compound interest </em><em>at brainly.com/question/25263325. </em>

4 0
2 years ago
What’s the best way to revise for maths? can never remember how to do anything.
Allisa [31]

Repetition is a guaranteed way to learn something. If it is a formula you need to learn, try doing flashcards and reading it over and over again until you can spell it without the flahcard. If it is something like factoring, just do a bunch of factoring problems until you get the feel of it.

8 0
3 years ago
What is a signal 9 on a police scanner? They just said she "dropped a signal 9"
Tom [10]
It means <span>Bomb Threat Assignment...</span>
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