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Dafna1 [17]
3 years ago
9

Original price: $33.75, markdown 75%

Mathematics
2 answers:
Kamila [148]3 years ago
6 0

Answer:

8.44 / (8.4375)

Step-by-step explanation:

1) Multiply the original price with .75, 75% as a decimal

25.3125

2) Subtract markdown price: 25.3125 from 33.75

8.4375

3) You could round to $8.44

Cloud [144]3 years ago
4 0

Answer:

$25.31

Step-by-step explanation:

If you multiply 33.75 by .75 you get your answer.

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you need to do 300 hours of community service for a scholarship. you have served 135 hours so far. write and solve an inequality
Lyrx [107]
You need 165 hours left to work.
5 0
2 years ago
A pizza pan is removed at 9:00 PM from an oven whose temperature is fixed at 450°F into a room that is a constant 70°F. After 5​
gladu [14]

Answer:

A) It will get to a temperature of 125°F at 9:19 PM

B) It will get to a temperature of 150°F at 9:16 PM

C) as time passes temperature approaches the initial temperature of 450°F

Step-by-step explanation:

We are given;

Initial temperature; T_i = 450°F

Room temperature; T_r = 70°F

From Newton's law of cooling, temperature after time (t) is given as;

T(t) = T_r + (T_i - T_r)e^(-kt)

Where k is cooling rate and t is time after the initial temperature.

Now, we are told that After 5​ minutes, the temperature is 300°F.

Thus;

300 = 70 + (450 - 70)e^(-5k)

300 - 70 = 380e^(-5k)

230/380 = e^(-5k)

e^(-5k) = 0.6053

-5k = In 0.6053

-5k = -0.502

k = 0.502/5

k = 0.1004 /min

A) Thus, at temperature of 125°F, we can find the time from;

125 = 70 + (450 - 70)e^(-0.1004t)

125 - 70 = 380e^(-0.1004t)

55/380 = e^(-0.1004t)

In (55/380) = -0.1004t

-0.1004t = -1.9328

t = 1.9328/0.1018

t ≈ 19 minutes

Thus, it will get to a temperature of 125°F at 9:19 PM

B) Thus, at temperature of 150°F, we can find the time from;

150 = 70 + (450 - 70)e^(-0.1004t)

150 - 70 = 380e^(-0.1004t)

80/380 = e^(-0.1004t)

In (80/380) = -0.1004t

-0.1004t = -1.5581

t = 1.5581/0.1004

t ≈ 16 minutes.

Thus, it will get to a temperature of 150°F at 9:16 PM

C) As time passes which means as it approaches to infinity, it means that e^(-kt) gets to 1.

Thus,we have;

T(t) = T_r + (T_i - T_r)

T_r will cancel out to give;

T(t) = T_i

Thus, as time passes temperature approaches the initial temperature of 450°F

6 0
3 years ago
In the figure, BE||CD. Solve for x. Show your work.
marin [14]

Answer:

<em>Answer</em><em> </em><em>is</em><em> </em><em>x</em><em> </em><em>=</em><em> </em><em>15</em>

<em>Answer</em><em> </em><em>is given below with explanations</em><em>. </em>

Step-by-step explanation:

in \: the \: figure \: BE ||  CD \\ by \: thales \: theorem \\  \frac{AE}{ED}  =  \frac{AB}{BC}  \\ on \: substituting \: the \: values \: from \: the \: figure \\  \frac{9}{6}  =  \frac{x}{10}  \\  \frac{3}{2}  =  \frac{x}{10}  \\ x =  \frac{3 \times 10}{2}  \\ x =  \frac{30}{2}  \\ x =15  \\

<em>HAVE A NICE DAY</em><em>!</em>

<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>.</em>

3 0
2 years ago
ABCD is a rhombus. If AC = 8 cm and BC = 6 cm, what is the area of the rhombus?
anygoal [31]

Answer:24, it depend upon the picture

Step-by-step explanation:

if the ac and bc are diagonals the area of rhombus equal to 24.because area of the rhombuss = pq/2where p and q are  the diagonals

7 0
2 years ago
Is 12/4 equal to 3/12
kotegsom [21]

Answer:

No, it is not.

Step-by-step explanation:

The decimal value of 12/4 is 3

The decimal value of 3/12 is 0.25

8 0
3 years ago
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