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Rudik [331]
3 years ago
10

What are the solutions to the equation x - (7/x) = 6

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
7 0

Answer: c. x=-1 and x=7

Step-by-step explanation:

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A local pizzeria offers 15 toppings for their pizzas and you can choose any 3 of them for one fixed price. How many different ty
Shtirlitz [24]

Answer:

  455 or 680, depending

Step-by-step explanation:

If we assume the three choices are different, then there are ...

  15C3 = 15·14·13/(3·2·1) = 35·13 = 455

ways to make the pizza.

___

If two or three of the topping choices can be the same, then there are an additional ...

  2(15C2) +15C1 = 2·105 +15 = 225

ways to make the pizza, for a total of ...

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different types of pizza.

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There is a factor of 2 attached to the number of choices of 2 toppings, because you can have double anchovies and tomato, or double tomato and anchovies, for example, when your choice of two toppings is anchovies and tomato.

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nCk = n!/(k!(n-k)!)

6 0
3 years ago
Jordan already knew 2 appetizer recipes before starting culinary school, and he will learn 2 new appetizer recipes during each w
kirill115 [55]

Answer:

w=2r

r= w/2

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w -2r= 0

Step-by-step explanation:

Let w be the number of weeks and r be the number of recipes learnt . So he will learn 2 recipes each week .Equating gives

w=2r

when w= 1

w= 2(1) = 2

For 1st week 2 recipes are learned

when w= 2

w= 2( 2) = 4

For 2nd week 4 recipes are learned.

or

when r= 2

r= w/2

r =2/2  = 1  one  recipe is learned in half of the week  

r- w/2 = 0

or

w -2r= 0

6 0
3 years ago
Nathan wants to draw a triangle. He knows that two of the side lengths are 5 inches and 7 inches. What is a possible length for
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Answer:

the third side would be 5 inches.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Four pounds of apples cost $5. Eght pounds of apples cost $10. If the total cost of apples, y varies directly with the
dlinn [17]
Well the cost of the apples can be found by dividing the price by the amount bought. ($5/4 or $10/8 = $1.25/lb). If you want to find the amount for 6 pounds just multiply it by the individual cost (6x$1.25= $7.50)
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3 years ago
Is the sequence Arithmetic, Geometric, or Neither?<br> 3,-6,-15,-24,...
snow_tiger [21]

Answer:geometric

Step-by-step explanation: purrrr

8 0
2 years ago
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