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eimsori [14]
3 years ago
5

A jar contains 3 pennies, 5 nickels, 4 dimes, and 6 quarters. If a coin is selected at random, what is the probability of select

ing a penny?
Mathematics
2 answers:
bagirrra123 [75]3 years ago
7 0
The probability of selecting a penny would be 1/6
klio [65]3 years ago
5 0

Answer:

Step-by-step explanation:

3 out of 18 chance

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(×+2) +(4×-122)=180 need help with this problem
alina1380 [7]
So first you need to open the brackets, so it would be x+2+4x-122=180. Then we can add the 4x and the other x to make 5x, and then by doing 2-122 we get -120. This gives us the equation 5x-120=180. We then isolate the variable by moving the -120 to the other side of the equation and becoming a positive, so it would look like 5x=180+120. Then, we have 5x=300. 300 divides by 5 is 60 making X=60. Hope this helps!
6 0
2 years ago
Find the dimensions of a rectangle with area 343 m2 whose perimeter is as small as possible.
raketka [301]
I hope this helps you



Area=length.width



343=l.w


7.7.7=l.w


l=49


w=7


Perimeter=2 (49+7)


Perimeter=2.56


Perimeter=112
3 0
3 years ago
Determine whether the graphs of y=8x+5 and -y=-8x-5 are parallel ,perpendicular,coincident , or none of these.
PolarNik [594]

Answer:

Below

Step-by-step explanation:

The equations are:

● y = 8x + 5

● -y = -8x + 5 => y = 8x - 5

Both lines have the same slope wich means that they are parallel

5 0
2 years ago
Is it possible to draw a quaderilateral that is not a trapezoid and not a parallelogram
Scrat [10]

Answer:

Yes

Step-by-step explanation:

A square is a quadlirateral.

A rectangle is a quadrilateral.

5 0
11 months ago
a phone company offers two monthly plans. plan A costs 13 plus an additional 0.16 for each minute of calls. Plan B costs 24 plus
vladimir1956 [14]

Answer:

Let x represent number of calling minutes

Step-by-step explanation:

17 + .11x = 22 + .07x

      .04x = 5

         x = 5/.04  = 125 minutes, is the number of minutes the two plans cost the same

 17 + .11*125 = $30.75 is the cost when the two plans cost the same  

5 0
3 years ago
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