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Charra [1.4K]
3 years ago
15

How is multiplying by the reciprocal the same as diving?

Mathematics
1 answer:
Artemon [7]3 years ago
6 0

for example

2/3 the reciprocal is 3/2

and when you divide 2/3 you have to "flip" it and it is 3/2

then you still have to multiply the same thing

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How many kilograms in 10 lbs
marissa [1.9K]
There are  4.53592 kilograms in 10 lbs.

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A dartboard consists of two concentric circles. The probability of hitting the inner circle is
stepan [7]
Given:
Diameter of outer circle = 20 inches.

We need to find the Area of the outer circle to get the radius of the inner circle.

Area = πr²

Outer circle Area = 3.14 * (10in)² = 314 in²

314 in² * 64% probability = 200.96 in² Area of the inner circle.

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3 years ago
On an average Saturday, 15% of tickets sold are child tickets. If there were 460 tickets sold in total on Saturday. How many wer
gtnhenbr [62]

Answer:


Step-by-step explanation:


5 0
3 years ago
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Sistema de ecuaciones.5x+2y=-152x-2y=-6
Zolol [24]

Tnemos el sisema de ecuaciones:

\begin{gathered} 5x+2y=-15 \\ 2x-2y=-6 \end{gathered}

Podemos resolverlo por eliminación sumando ambas ecuaciones y eliminando y. Asi podemos resolver para x:

\begin{gathered} (5x+2y)+(2x-2y)=(-15)+(-6) \\ 7x+0y=-21 \\ x=-\frac{21}{7} \\ x=-3 \end{gathered}

Ahora podemos resolver para y con cualquiera de las dos ecuaciones:

\begin{gathered} 2x-2y=-6 \\ 2\cdot(-3)-2y=-6 \\ -6-2y=-6 \\ -2y=-6+6 \\ -2y=0 \\ y=0 \end{gathered}

Respuesta: x=-3, y=0

7 0
1 year ago
triangle ABC above is isosceles with AB=AC and BC =48. the ratio of DE is 5:7. what is the length of DC
marshall27 [118]

Answer:

28

Step-by-step explanation:

Question Image is attached.

Triangle BED and Triangle CFD are similar.

We can let the length of BD be 5x and DC 7x

We also know BC = 48, thus we can write:

5x + 7x = 48

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x = 4

Now, Since DC = 7x, we plug in x = 4 into it.

DC = 7x

DC = 7(4)

DC = 28

Length of DC is 28

6 0
3 years ago
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