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viva [34]
3 years ago
13

You have just been paid $25 for mowing your neighbor's lawn. You want to buy a book that costs $24. Once you factor in the state

sales tax of 4%, how much money will you be left with after the purchase?
Mathematics
2 answers:
Andrews [41]3 years ago
5 0

Answer:

4 cents left with after the purchase

Step-by-step explanation:

You have just been paid $25 for mowing your neighbor's lawn. You want to buy a book that costs $24.

4% sales tax for he cot 24

24 \cdot 4percent\\24 \cdot 0.04= 0.96\\24+0.96=24.96

So the cost to buy the book is 24.96

you have 25 , subtract 24.96 from 25 to get the left out amount

25- 24.96=0.04

4 cents left with after the purchase

Whitepunk [10]3 years ago
3 0

Answer:

A $ .04

Step-by-step explanation:

You might be interested in
Suppose that a box contains r red balls and w white balls. Suppose also that balls are drawn from the box one at a time, at rand
dybincka [34]

Answer: Part a) P(a)=\frac{1}{\binom{r+w}{r}}

part b)P(b)=\frac{1}{\binom{r+w}{r}}+\frac{r}{\binom{r+w}{r}}

Step-by-step explanation:

The probability is calculated as follows:

We have proability of any event E = P(E)=\frac{Favourablecases}{TotalCases}

For part a)

Probability that a red ball is drawn in first attempt = P(E_{1})=\frac{r}{r+w}

Probability that a red ball is drawn in second attempt=P(E_{2})=\frac{r-1}{r+w-1}

Probability that a red ball is drawn in third attempt = P(E_{3})=\frac{r-2}{r+w-1}

Generalising this result

Probability that a red ball is drawn in [tex}i^{th}[/tex] attempt = P(E_{i})=\frac{r-i}{r+w-i}

Thus the probability that events E_{1},E_{2}....E_{i} occur in succession is

P(E)=P(E_{1})\times P(E_{2})\times P(E_{3})\times ...

Thus P(E)=\frac{r}{r+w}\times \frac{r-1}{r+w-1}\times \frac{r-2}{r+w-2}\times ...\times \frac{1}{w}\\\\P(E)=\frac{r!}{(r+w)!}\times (w-1)!

Thus our probability becomes

P(E)=\frac{1}{\binom{r+w}{r}}

Part b)

The event " r red balls are drawn before 2 whites are drawn" can happen in 2 ways

1) 'r' red balls are drawn before 2 white balls are drawn with probability same as calculated for part a.

2) exactly 1 white ball is drawn in between 'r' draws then a red ball again at (r+1)^{th} draw

We have to calculate probability of part 2 as we have already calculated probability of part 1.

For part 2 we have to figure out how many ways are there to draw a white ball among (r) red balls which is obtained by permutations of 1 white ball among (r) red balls which equals \binom{r}{r-1}

Thus the probability becomes P(E_i)=\frac{\binom{r}{r-1}}{\binom{r+w}{r}}=\frac{r}{\binom{r+w}{r}}

Thus required probability of case b becomes P(E)+ P(E_{i})

= P(b)=\frac{1}{\binom{r+w}{r}}+\frac{r}{\binom{r+w}{r}}\\\\

7 0
4 years ago
​together, steve and tom sold 7777 raffle tickets for their school. steve sold 1414 more than twicetwice as many raffle tickets
storchak [24]
Steve = S , Tom = T
1) S+T = 7777
2) S= 1414 + 2T

put 2) in 1)

1414+2T + T = 7777
1414 +3T = 7777
3T = 6363
so T = 2121
then Steve sold 1414+2(2121) = 1414+4242=5656 tickets
while Tom sold 2121 tickets
5 0
4 years ago
24 N of force is applied to stop a 12 kg bowling ball. What is the acceleration on the ball?
Nimfa-mama [501]

Answer:

2 m/s^2

Step-by-step explanation:

f=ma

24 N = 12 kg * a

a = 2 m/s^2

3 0
3 years ago
Does anyone know this answer?
choli [55]

Answer:

The answer is Vertical

Step-by-step explanation:

Hope this helps <3

7 0
3 years ago
20POINTS! Determine if two triangles are congruent. If they are, state which theorem you can use to prove congruency. EXPLAIN WH
ki77a [65]

Answer:

both each side of each triangle is equal

use alphabets to mark each edge of the triangles and prove congruency

6 0
3 years ago
Read 2 more answers
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