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disa [49]
3 years ago
6

Kamil has quarters and nickels in his pocket. He takes one coin out, and then another.

Mathematics
2 answers:
Stels [109]3 years ago
6 0

I believe that the answer that Jadie gave was a bit confusing, so here is the answer that I put in by looking at other questions similar to this one.

GaryK [48]3 years ago
3 0
Hey! I know this is a bit late, but I realized I had the same question! Here is the answer to the question ;3Hope I helped! :D

Coin 1:The top box on the coin 1 section is QThe bottom box on the coin 1 section isNCoin 2:The first box on coin 2 is NThe second box is QThe third is QThe final box is N !Good luck~!

You might be interested in
What is the greatest common factor of 14, 51 ,21
nikitadnepr [17]

Answer:

The answer is 1

Step-by-step explanation:

14 = 2 × 7

51 = 3 × 17

21 = 3 × 7

4 0
3 years ago
Which expression is equivalent to(8w 7x-5y3z-9)-2/3
Shkiper50 [21]

Answer:

56wx - 15yz -  \frac{29}{3}

Step-by-step explanation:

1. \: 56wx - 5y \times 3z - 9 -  \frac{2}{3}  \\ 2. \: 56wx - 15yz - 9 -  \frac{2}{3}  \\ 3. \: 56wx - 15yz + ( - 9 -  \frac{2}{3} )

4 0
4 years ago
Solve the equation for X.<br> 5/6x - 1/3 = -2
Semmy [17]

Answer:

x = -2

Step-by-step explanation:

First, add 1/3 to both sides. You end up with 5/6x = -5/3. Next, you divide both sides by 5/6. You should finish with x = -2.

4 0
3 years ago
A 15-ft ladder leans against a wall. The lower end of the ladder is being pulled away from the wall at the rate of 1.5 ft/sec. L
Aleks [24]

Answer:

The top of the ladder is sliding down at a rate of 2 feet per second.

Step-by-step explanation:

Refer the image for the diagram. Consider \Delta ABC as right angle triangle. Values of length of one side and hypotenuse is given. Value of another side is not known. So applying Pythagoras theorem,

\left ( AB \right )^{2}+\left ( BC \right )^{2}=\left ( AC \right )^{2}

From the given data, L=15\:ft=AC, y=9\:ft=AB and x=BC

Substituting the values,  

\therefore \left ( 9 \right )^{2}+\left ( x \right )^{2}=\left ( 15 \right )^{2}

\therefore 81+x^{2}=225

\therefore x^{2}=225-81

\therefore x^{2}=144

\therefore \sqrt{x^{2}}=\sqrt{144}

\therefore x=\pm 12

Since length can never be negative, so x= 12.

Now to calculate \dfrac{dy}{dt} again consider following equation,  

\left ( y \right )^{2}+\left ( x \right )^{2}=\left ( l \right )^{2}

Differentiate both sides of the equation with respect to t,  

\dfrac{d}{dt}\left(y^2+x^2\right)=\dfrac{d}{dt}\left(l^2\right)

Applying sum rule of derivative,

\dfrac{d}{dt}\left(y^2\right)+\dfrac{d}{dt}\left(x^2\right)=\dfrac{d}{dt}\left(l^2\right)

\dfrac{d}{dt}\left(y^2\right)+\dfrac{d}{dt}\left(x^2\right)=\dfrac{d}{dt}\left(225\right)

Applying power rule of derivative,  

2y\dfrac{dy}{dt}+2x\dfrac{dx}{dt}=0

Simplifying,  

y\dfrac{dy}{dt}+x\dfrac{dx}{dt}=0

Substituting the values,  

9\dfrac{dy}{dt}+12\times1.5=0

9\dfrac{dy}{dt}+18=0

Subtracting both sides by 18,

9\dfrac{dy}{dt}=-18

Dividing both sides by 9,

\dfrac{dy}{dt}= - 2

Here, negative indicates that the ladder is sliding in downward direction.  

\therefore \dfrac{dy}{dt}= 2\:\dfrac{ft}{sec}

7 0
3 years ago
Ray needs to mail his Christmas cards and packages and wants to keep the mailing costs to no more than $400 . The number of card
jeka94
The anwser for your question is 120
5 0
3 years ago
Read 2 more answers
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