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Elden [556K]
3 years ago
15

A server gets an average of $4.50 in tips for each table he serves. In the morning, the server had 12 tables and in the afternoo

n the server had 13 tables Find his tips
Mathematics
1 answer:
Natali5045456 [20]3 years ago
3 0

Answer:

$112.50

Step-by-step explanation:

so the first thing you would do is add 12 to 13 to get

12 + 13 = 25

then multiply 25 by 4.50 to get

25 x 4.50 = 112.50

so the average number of tips the server has received is $112.50

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erastova [34]

a=4 and b=6.

so you will plug the 4 for a and plug 6 in for b

the new equation is going to be:

3(4)-(6)

3*4-6

12-6

THE ANSWER IS 6

8 0
4 years ago
2) Which of the following is the quadratic
blagie [28]

Answer:

a

Step-by-step explanation:

its a because i looked it up and it said a

8 0
4 years ago
Researchers planning a study of the reading ability of third-grade children want to obtain a 95% confidence interval for the pop
Fed [463]

Answer:

A) M = 3.016

B) M = 9.79

C) 62

Step-by-step explanation:

A) We are given;

Population size; n = 100

standard deviation; σ = 12

Formula for the margins of error is;

M = z × σ/√n

At 99% confidence interval, z = 2.58

Thus;

M = 2.58 × 12/√100

M = 3.016

B) n is now equal to 10, thus at same confidence interval used in option A, we have;

M = 2.58 × 12/√10

M = 9.79

C) to solve this, we will use the formula;

n ≥ (zσ/m)²

Where;

z at 95% confidence interval has a value of 1.96

m is the margin of error = 3

Thus;

n ≥ (1.96 × 12/3)²

n ≥ 61.4656

Thus,approximately n = 62

5 0
3 years ago
If 0 &lt; f ≤ 90 and cos(22f − 1) = sin(7f + 4), what is the value of f?
pshichka [43]

Answer:

3

Step-by-step explanation:

We are going to be using cofunction identity cos(90-x)=sin(x).

Apply to either side but not both.

cos(22f − 1) = sin(7f + 4)

sin(90-[22f-1])=sin(7f+4)

90-[22f-1]=7f+4

Distribute

90-22f+1=7f+4

Combine like terms

91-22f=7f+4

Add 22f on both sides

91=29f+4

Subtract 4 on both sides

87=29f

Divide 29 on both sides

3=f

f=3 is between 0 and 90

3 0
3 years ago
Select all that apply.
Ymorist [56]

Answer:

B

C

Step-by-step explanation:

B= one question equals one minute

C= one minute equals one question

3 0
3 years ago
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