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oksian1 [2.3K]
3 years ago
8

There are a total of coins when dimes and nickels are combined. The total amount is 80 cents. How many dimes and nickels are the

re, respectively?
Mathematics
1 answer:
denpristay [2]3 years ago
6 0
Can you give me more details so I can help please
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A rectangular plot of farmland will be bounded on one side by a river and on the other three sides by a​ single-strand electric
Murrr4er [49]

Answer:

A = 781250\,m^{2}, x = 625\,m, y = 1250\,m

Step-by-step explanation:

The perimeter covered by the electric fence in meters is:

2\cdot x + y = 2500

The area of the rectangle is:

A = x\cdot y

A = x \cdot (2500-2\cdot x)

Let differentiate the previous equation and equates to zero:

2500-4\cdot x = 0

The critical point is:

x = 625\,m

By the Second Derivative Text, it is proved that critical point lead to a maximum:

\frac{d^{2}A}{dx^{2}} = -4

The other side of the rectangle is:

y = 1250\,m

The largest area than can be enclosed is:

A = (625\,m)\cdot (1250\,m)

A = 781250\,m^{2}

The dimensions of the triangle are:

x = 625\,m

y = 1250\,m

3 0
4 years ago
I just need help shouldn't be too hard if you understand it
ehidna [41]

Answer:

x =|y| x right = negative x left=+ y up = + y down = -

3 0
3 years ago
Read 2 more answers
Find the reciprocal of the number. Multiply to check your answer.
artcher [175]
The answer is 1/6 because 6 is 6/1 then if you do a reciprocal you would get 1/6.

8 0
4 years ago
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Helpppppp me pleaseeeee<br> Divide the following integers. -12 � 4= -3 -8 -48 3
Orlov [11]

Answer:

Step-by-step explanation:

Simplify  -12\ 4−12÷4  to  -3−3.

-3=-3-8-48,3

−3=−3−8−48,3

2 Simplify  -3-8−3−8  to  -11−11.

-3=-11-48,3

−3=−11−48,3

3 Simplify  -11-48−11−48  to  -59−59.

-3=-59,3

−3=−59,3

4 Since -3=-59,3−3=−59,3 is false, there is no solution.

4 0
3 years ago
Plz help I’m desperate
sweet-ann [11.9K]

Answer:

Step-by-step explanation:

f(-2)=5

Since Pemdas is used, taking care of that x is squared before multiplying -3 to make sure you don't mess up the signs.

Enjoy your day love <3

5 0
3 years ago
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