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vivado [14]
3 years ago
10

DeAnna has 80 books in her collection If 60% of the books of fiction how many of the books or nonfiction

Mathematics
1 answer:
tatuchka [14]3 years ago
6 0

Answer: 48 books

Step-by-step explanation: Start by converting 60% to a decimal/fraction (60/100). From there, you can multiply it by the total (80) to get the answer.

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Cody, the owner of an e-commerce site, buys emerald pendants for $400 and then sells them
Trava [24]

Answer:

The marked up percentage is 112.5%

Step-by-step explanation:

The cost price of the emerald pendant = $400

The selling price of the emerald pendant = $840

Now, the Mark up Price  = Selling Price - Cost Price

                                          = $840  - $400 = $450

Also, \textrm{Percentage of Mark up Price}  = \frac{\textrm{the Marked up price}}{\textrm{The Cost Price}}  \times 100

= \frac{450}{400}  \times 100 = 112.5

⇒  Percentage of Mark up Price =  112.5%

Hence, the marked up percentage is 112.5%

5 0
3 years ago
Which proportion could be used to find the length of side b?
natima [27]

Answer:

sin23/6.2 = sin85/b

Step-by-step explanation:

Just did it!

3 0
2 years ago
I need help plz<br> 12<br> 10<br> 8<br> 12.5
kherson [118]

Answer:

8

Step-by-step explanation:

5 0
2 years ago
A small-appliance manufacturer finds that the profit P (in dollars) generated by producing x microwave ovens per week is given b
Olegator [25]

Answer:

Number of ovens must be manufactured in a given week to generate a profit of $1610  is 70

Step-by-step explanation:

We are given

A small-appliance manufacturer finds that the profit P (in dollars) generated by producing x microwave ovens per week is given by the formula

P=\frac{1}{10}x(300-x)

provided that 0 ≤ x ≤ 200

We are given

profit is $1610

so, we can set P=1610

and then we can solve for x

1610=\frac{1}{10}x(300-x)

Multiply both sides by 10

1610\cdot \:10=\frac{1}{10}x\left(300-x\right)\cdot \:10

16100=x\left(300-x\right)

16100=300x-x^2

-x^2+300x-16100=0

now, we can factor it

(x-70)(x-230)=0

we can solve for x

and we get

x=70,x=230

Since, x=230 does not lie on 0 ≤ x ≤ 200

So, we will consider only x=70

So,

Number of ovens must be manufactured in a given week to generate a profit of $1610  is 70


7 0
3 years ago
Use the substitution method to solve the system of equations. Choose the correct ordered pair.
Reptile [31]

Answer:


Step-by-step explanation:

B.(10,1)

4 0
3 years ago
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