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Anuta_ua [19.1K]
3 years ago
9

Pre Calculus:

Mathematics
2 answers:
Mademuasel [1]3 years ago
4 0

Answer:

(p-200)/30 that is the answer good luck

Gwar [14]3 years ago
3 0
Let n be a number of friends at the perty. If <span>dinner costs $30 per person, then it cost $30n for all friends.
</span>
Robert has booked a banquet hall which costs <span>$200, then his total expenses are $200+30n.
</span>
If the final bill is p, then p=<span>200+30n.
</span>
Answer: p=<span>200+30n.</span>

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2) Write the first five terms of the arithmetic sequence, if:<br> a3=8<br> a11=32
padilas [110]

Answer:

a

Step-by-step explanation:

the five terms for arithmetic is that

5 0
3 years ago
I need help in everything
elena-s [515]
<span>-6f+13=2f-11
-6f - 2f  = -11 - 13
-8f = -24
   f = 3</span>
4 0
3 years ago
Read 2 more answers
A paint manufacturer uses a machine to fill gallon cans with paint​ (1 galequals128 ​ounces). The manufacturer wants to estimate
kvasek [131]

Answer:

a) To determine the minimum sample size we need to use the formula shown in the picture 1.

E is the margin of error, which is the distance from the limits to the middle (the mean) of the confidence interval. This means that we have to divide the range of the interval by 2 to find this distance.

E = 0.5/2 = 0.25

Now we apply the formula

n = (1.645*0.80/0.25)^2 = 27.7 = 28

The minimum sample size would be 28.

b) To answer the question we are going to make a 90% confidence interval. The formula is:

(μ - E, μ + E)

μ is the mean which is 127. The formula for E is shown in the picture.

E = 0.80*1.645/√8 = 0.47

(126.5, 127.5)

This means that the true mean is going to be contained in this interval 90% of the time. This is why it doesn't seem possible that the population mean is exactly 128.

7 0
3 years ago
to find the final cost of the shoes, the $15 coupon can be applied first and then the 20% discount, or the 20% discount can be a
guapka [62]

First apply  20% discount  then applied $15 coupon combination gives better deal.

As given in the question,

Let final cost of the shoes be $100

First apply $15 coupon  then applied 20% discount

100-15=$85

Now,  20% of 85= (20/100) × 85

                          =$17

Final price,  85 - 17 =$68

First apply  20% discount  then applied $15 coupon

Now,  20% of 100= (20/100) × 100

                          =$20

100-20 = $80

Apply coupon $15

Final price, 80 - 15 =$65

Therefore, first apply  20% discount  then applied $15 coupon combination gives better deal.

Learn more about discount here

brainly.com/question/3541148

#SPJ4

8 0
2 years ago
Multiple Step Equations
Wittaler [7]
The answer is D.

The first step is to use the distributive property and turn 5(x-4) into 5x - 20.
You then move the twenty into the right equation by adding 20 to both sides. The final step is to move the 3x into the left equation by subtraction and then dividing both sides by 2 to isolate x. Hope this helped !!
5 0
3 years ago
Read 2 more answers
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