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DerKrebs [107]
3 years ago
14

I will give brainiest to whoever answers correctly !!

Mathematics
1 answer:
mars1129 [50]3 years ago
6 0

Given:

Cost of fish dinner = $10.95

selling price of fish dinner = $13.95.

To find:

The percent markup.

Solution:

We know that,

\text{Percent Markup}=\dfrac{\text{Price - Cost}}{\text{Cost}}\times 100

Using this formula, we get

\text{Percent Markup}=\dfrac{13.95-10.95}{10.95}\times 100

\text{Percent Markup}=\dfrac{3}{10.95}\times 100

\text{Percent Markup}=\dfrac{300}{10.95}

\text{Percent Markup}=27.39726

Round to the one decimal place.

\text{Percent Markup}\approx 27.4

Therefore, the markup is 27.4%.

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A cup of tea with initial temperature of I = 85C^(circ) is left in the room with a constant temperature A = 21^(circ). In one mi
tatyana61 [14]

Answer:

  • 45.9° after 1 hour
  • 22° after 264 minutes

Step-by-step explanation:

The temperature can be modeled by a decaying exponential function with an initial value of (85° -21°) = 64° and a vertical offset of 21°. The temperature T as a function of time t can be written as ...

  T(t) = 21 +64(63/64)^t . . . . where t is in minutes and T is in degrees

The ratio 63/64 is the fraction of the initial temperature difference that remains after 1 minute.

We are asked for two points on the curve described by this function:

  • T(60)
  • t when 22 = T(t)

__

(a) T(60) = 21 +64(63/64)^60 ≈ 45.88

The temperature after 1 hour will be about 45.9 °C.

__

(b) Solving for t, we get ...

  22 = 21 +64(63/64)^t . . . . fill in the value of T

  1 = 64(63/64)^t . . . . . . . . . subtract 21

  1/64 = (63/64)^t . . . . . . . . .divide by 64

  log(1/64) = t·log(63/64) . . . take the log

  log(1/64)/log(63/64) = t ≈ 264.08 . . . . divide by the coefficient of t

The temperature of the tea will be 22° after 264 minutes.

6 0
3 years ago
So I solved this problem already but I have to explain how I solved it but I used Photomath so how would you explain how you sol
yan [13]

Answer:

Remove parentheses.

y-10=-3\times -2y−10=−3×−2

2 Simplify 3\times -23×−2 to -6−6.

y-10=-(-6)y−10=−(−6)

3 Remove parentheses.

y-10=6y−10=6

4 Add 1010 to both sides.

y=6+10y=6+10

5 Simplify 6+106+10 to 1616.

y=16y=16

6 0
3 years ago
What is the value of y? 2y y+10 50 all in degrees and in different angles of a triangle
s344n2d4d5 [400]
You need to do 2y+y+10+50=180. Then you'd combine like terms to make 3y+60=180 then to get rid of the sixty subtract it from 180 to make 3y=120 then divide by three to get y by itself so 120 divided by three is 40 which makes y whisk forty. Hope this helped.
3 0
4 years ago
Read 2 more answers
If 3x-8=-2,find the value of x-6
xxMikexx [17]
I believe the answer is -8
5 0
3 years ago
Eli, Daphne, Celeste, and Thaddeus ran for school president. The graph shows how the students in their school voted.
andrew11 [14]

Eli received the most votes

Step-by-step explanation:

Given percentages are:

Eli: 30%

Daphne: 27%

Celeste: 25%

Thaddeus: 18%

When a circle chart is used, the sum of all percentages is 100.

In case of finding the largest between the portions, the part with the greater percentage has the greater share in the chart.

According to given percentages, Eli has the highest percentage, which means that Eli received the most votes.

Hence,

Eli received the most votes

Keywords: Circle chart, percentages

Learn more about circle chart at:

  • brainly.com/question/10978510
  • brainly.com/question/11007026

#LearnwithBrainly

4 0
3 years ago
Read 2 more answers
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