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Contact [7]
3 years ago
9

melissa makes apple pies and sells them with a markup of 78%. write an equation representing the retail price y of melissa's app

le pies in terms of the original cost x.
Mathematics
2 answers:
Westkost [7]3 years ago
8 0

Answer:

Equation representing the retail price y of apple pies in terms of the original cost x  is      y = 1.78 x

Step-by-step explanation:

The original cost of apple pie = x

The mark up percentage = 78%

The retail price of the apple pie = y

Now, the mark up is always applied on the original price.

⇒78%  of x  = \frac{78}{100} \times x = 0.78x

So, the marked up amount of pie = 0.78 x

Also, the Total Retail price = Original Price + Marked up Price

                                             = x+ 0.78 x = (1+ 0.78)x  =  1.78 x

or, y = 1.78 x

Hence,equation representing the retail price y of apple pies in terms of the original cost x  is y = 1.78 x

Mandarinka [93]3 years ago
8 0

Answer:

x=y/1.78

Step-by-step explanation:

If you know the original value then you would multiply by 1.78 to calculate the price after markup. Thus if you know the price after markup you divide by 1.78 to find the original value.

y=markup price

x=original price

y=1.78x

Divide both sides by 1.78

y/1.78=x

x=y/1.78

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1 liter is equal to 1000 mililiter and is multiplied by 3 and the answer is devided into 5.

5 0
2 years ago
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Use the law of sines to find the value of w.
Lunna [17]

Option B: 4.0 cm is the value of w

Explanation:

It is given that \angle W= 39, \angle U=31, VW=3.3 and UV=w

Using the law of sines, we have,

\frac{sin U}{3.3} =\frac{sin W}{w}

Substituting the values, we have,

\frac{\sin 31}{3.3}=\frac{\sin 39}{w}

Cross multiplying, we get,

(sin31) w=3.3( \sin 39)

Simplifying, we have,

0.515w=2.077

Dividing both sides by 0.515, we have,

w=4.0

Thus, the value of w is 4.0 cm

Hence, Option B is the correct answer.

4 0
3 years ago
Read 2 more answers
Find the value of 5!<br> A. 25<br> B. 20<br> C. 120<br> D. 15
zvonat [6]

Answer:

C 120

Step-by-step explanation:

7 0
2 years ago
A contractor combined x tons of a gravel mixture that contained 10 percent gravel G, by weight, with y tons of a mixture that co
White raven [17]

Answer:

The value of x would be \frac{3}{5}y or \frac{3}{8}z

Step-by-step explanation:

Given,

x tons of 10% gravel G mixture is mixed with y ton of 2% gravel G to obtain  5% gravel mixture,

Thus, gravel G in x ton + gravel in y ton = gravel G in the resultant mixture,          

⇒ 0.1x + 0.02y = 0.05(x+y),

0.1x - 0.05x = 0.05y - 0.02y

0.05x = 0.03y

\implies x = \frac{0.03}{0.05}y=\frac{3}{5}y----(1)

Now, resultant mixture is z ton,

i.e. z=x+y

\implies y = z - x

From equation (1),

x=\frac{3}{5}(z-x) = \frac{3}{5}z-\frac{3}{5}x

x+\frac{3}{5}x=\frac{3}{5}z

\frac{8}{5}x=\frac{3}{5}z

x=\frac{3}{8}z

3 0
3 years ago
I need help with this in math right now I'm struggling
kaheart [24]

Answer:

y=-4x-2

Step-by-step explanation:

linear function, y = mx+c

the y intercept of the graph,c, is -2

thus y = mx - 2

substitute a point on the graph into the equation, (2,-1)

2 = m(-1) -2

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thus equation of graph is y = -4x-2

3 0
2 years ago
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