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lozanna [386]
3 years ago
14

4. At a discount furniture store, Chris offers the salesperson $600 for a couch and a chair. The store charges 8% sales tax. If

the salesperson accepts the offer, what is the cost of the furniture, including tax? Round your answer to the nearest hundredth.
5. Shelly earned 20% more money waitressing this week than last week. Last week, she earned $72. How much money did she earn this week? Round your to the nearest hundredth.
6. A 24 ounce box of Cinnamon Crunchers cereal costs $3.99. At this rate, what is the cost of a 36 ounce box of Cinnamon Crunchers? Round your to the nearest hundredth.

NEED THIS DONE ASAP DUE TOMORROW
worth 10 points​
Mathematics
1 answer:
Lana71 [14]3 years ago
7 0

Answer:

4. $648

5. $86.40

Step-by-step explanation:

You take the percent (we'll take 4 for example, so 8%) and change it to a decimal: .08. You then multiply the decimal (.08) by your other number (in this case $600) and the resulting number is your answer, but not final. Take whatever the answer was (in this case 48) and add it to the orignal number (600) to get $648.

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A television sports commentator wants to estimate the proportion of citizens who​ "follow professional​ football." ​
Angelina_Jolie [31]

Answer: a)2206  b) 2209

Step-by-step explanation:

Formula to find the sample size :

a) If prior population proportion (p) is known.

n=p(1-p)(\dfrac{z_{c}}{E})^2

b) If prior population proportion (p) is unknown.

n=0.25(\dfrac{z_{c}}{E})^2

where, {z_{c} is the z-value associated with confidence level and E would be the margin of error .

Solution : Let p be the proportion of citizens who​ "follow professional​ football."

a) Given : p=0.48

Margin of error : E= 0.02

z-value for 94% confidence = z_c=1.88

Required sample size would be :

n=p(1-p)(\dfrac{z_{c}}{E})^2

\Rightarrow\ n=0.48(1-0.48)(\dfrac{1.88}{0.02})^2

Simply ,

n=2205.4656\approx2206  [Rounded to the next whole number.]

∴ The sample size is <u>2206</u>.

b) Proportion of citizens who​ "follow professional​ football" is unknown.

Margin of error : E= 0.02

z-value for 94% confidence = z_c=1.88

Required sample size would be :

n=0.25(\dfrac{z_{c}}{E})^2

\Rightarrow\ n=0.25(\dfrac{1.88}{0.02})^2

Simply ,

n=2209  

∴ The sample size is <u>2209</u>.

8 0
3 years ago
Use the working backward method to find the solution of the equation.<br> 6y - 5=7<br> y=____
sleet_krkn [62]

Answer:

y = 2

Step-by-step explanation:

6y - 5 = 7

~Add 5 to both sides

6y = 12

~Divide 6 to both sides

y = 2

Best of Luck!

5 0
2 years ago
Read 2 more answers
Charlie estimates his dog weighs 17 lbs. When Charlie weighed his dog, he weighed 20 lbs. What is the percent error of the weigh
-Dominant- [34]

Answer:

I think 85%

Step-by-step explanation:

I did butterfly method how I use to so i dont know if its right

6 0
2 years ago
Read 2 more answers
Someone help please
marta [7]

Answer:

565.6 ft³

Step-by-step explanation:

Volume = Rectangular prism + circular prism  

              = (6 x 6 x 11) + (3.14 x 3² x 6)

              = 396 + 169.6

              = 565.6

6 0
2 years ago
Read 2 more answers
What is the eighth term in the following sequence?
posledela
The answer to this question is A.48
7 0
3 years ago
Read 2 more answers
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