3 years ago

Answer the question below:

Mathematics

2 answers:

marissa [1.9K]3 years ago

7 0

$12 5 times 3 is 15 -20% is $12

charle [14.2K]3 years ago

7 0

Answer: $3

Step-by-step explanation:

3 dollars because if he wants to buy 3 plants that cost 5 dollars each, that would be $15. But he has a coupon for 20% off, so 20% into a decimal is 0.20. So 15x.20 =3

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DiKsa [7]

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3 years ago

An open box will be made from a rectangular piece of cardboard that is 8 in. by 10 in. The box will be cut on the dashed red lin

lakkis [162]

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3 years ago

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soldier1979 [14.2K]

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Step-by-step explanation:

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3 years ago

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Enter the y coordinate of the solution to this system of equations. <br> -2x+3y=-6<br> 5x-6y=15

julia-pushkina [17]

Y coordinate on solving both equations comes out to be 0
-2x+3y=-6
3y = -6+2x
put the value of 3y in equation 2nd
5x-2(-6+2x) =15
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x=3
put value of X in 3y = -6+2x
3y = -6+2*3 = -6+6 = 0
thus y = 0

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3 years ago

The circles are identical. What is the circumference of each circle? Circle 1: radius of 2x; Circle 2: diameter of 2x+3. A. 3/2

Delicious77 [7]

Answer:

C=6π

Step-by-step explanation:

It is given that, two circles are identical. The radius of first circle is 2x and the diameter of other circle is 2x+3.

If identical, it means that the radius of both circles are same i.e.

$2x=\dfrac{2x+3}{2}\ \ (\because\ r=\dfrac{D}{2}, d=\text{diameter})\\\\4x=2x+3\\\\2x=3\\\\x=1.5$

Radius of both circles is 2(1.5)=3

The circumference of a circle is given by :

$C=2\pi r\\\\C=2\pi (3)\\\\C=6\pi$

So, the circumference of each circle is 6π.

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3 years ago