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lord [1]
3 years ago
13

Estimate a 50% tip on a do the dinner bell of $47.84 by first round in the bill amount to the nearest $10

Mathematics
1 answer:
Andrej [43]3 years ago
8 0

Answer:

Tip= $25

Step-by-step explanation:

<u>First, we need to round the bill to the nearest tenth.</u>

Bill= 47.84 = 50

<u>Now, we can calculate the tip using the following formula:</u>

Bill proportion= 50% = 0.5

Tip= Bill*tip proportion

Tip= 50*0.5

Tip= $25

On a $50 bill, the tip is $25. The total amount to pay is $75.

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If the federal reserve decreases the reserve rate from 2.5% to 1.25% how does this affect the amount of money that would result
kirza4 [7]
The correct answer for this question is this one: "D it increases by $1,800,000"
<span>If the federal reserve decreases the reserve rate from 2.5% to 1.25%,  this affect the amount of money that would result because of fractional reserve banking from an initial deposit in a bank of $45,000 is that </span><u>it increases by $1,800,000</u>Hope this helps answer your question and have a nice day ahead.
3 0
3 years ago
Find the annual percent increase or decrease that y = 0.35(2.3)x models. (1 point) A.230% increase B.130% increase C.30% decreas
ipn [44]

Answer: B. 130% increase


Step-by-step explanation:

Given function :  y=0.35(2.3)^x

If x represents the number of years, we have to determine the two values of y in consecutive terms to determine if the value of y increases or decreases after a year.


This function is equivalent to the exponential growth function


y=A(1+r)^x, where A=0.35 and (1+r)=2.3, [A= initial amount , r=annual percent increase]

Thus,

\Rightarrow\ r=2.3-1\\\Rightarrow\ r=1.3\\\Rightarrow\ r=1.3\times100\%=130\%

Hence, the annual percent increase is 130%.

8 0
3 years ago
Read 2 more answers
The question is in the attachment.
Vesna [10]

Answer:

0.0816

Step-by-step explanation:

Given:

  • Total number of students = 5000
  • Number of students taking an online class = 1200
  • Number of students prefer watching baseball to football = 1700

Let O = Students taking an online class

Let B = Students prefer watching baseball to football

Therefore,

P(O) = 1200/5000 = 0.24

P(B) = 1700/5000 = 0.34

If events O and B are independent,

⇒ P(O ∩ B) = P(O) · P(B)

                   = 0.24 × 0.34

                   = 0.0816

8 0
2 years ago
Write the equation of the parabola that has the vertex at point (2,-11) and passes through the point (0,5).
aleksandr82 [10.1K]

~~~~~~\textit{vertical parabola vertex form} \\\\ y=a(x- h)^2+ k\qquad \begin{cases} \stackrel{vertex}{(h,k)}\\\\ \stackrel{"a"~is~negative}{op ens~\cap}\qquad \stackrel{"a"~is~positive}{op ens~\cup} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}

\stackrel{vertex}{(\stackrel{h}{2}~~,~~\stackrel{k}{-11})}\qquad y=a(x-2)^2-11\qquad \qquad \textit{we also know that} \begin{cases} x=0\\ y=5 \end{cases} \\\\\\ 5=a(0-2)^2-11\implies 16=4a\implies \cfrac{16}{4}=a\implies 4=a \\\\[-0.35em] ~\dotfill\\\\ ~\hfill y=4(x-2)^2-11~\hfill

7 0
2 years ago
Find the circumference of the circle. Use calculator pl or 3.14. Round to the nearest hundredth, if necessary,
NISA [10]

Answer: 28.3

Step-by-step explanation:

4 0
2 years ago
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