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ruslelena [56]
2 years ago
12

What expression is equivalent to 5 (x+6)-2x+9.

Mathematics
1 answer:
myrzilka [38]2 years ago
7 0
5x+30- 2x+9

3x+39 is the expression.
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Write an integer to describe a withdrawal of $50 from a bank account
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-$50. Hope this helps man. -50

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3 years ago
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a 20 cm nail just fits inside a cylindrical can. three identical spherical balls need to fit entirely within the can. what is th
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The maximum radius of each ball is 3.33 cm.

<h3>What is a Cylinder?</h3>

A cylinder is a three-dimensional figure which is made of two parallel circular bases separated at a certain distance by a curved surface of the same radius as that of the bases.

A 20 cm nail perfectly fits the cylinder.

So the height of the cylinder = 20cm.

A sphere is a three-dimensional geometrical figure analogous to a circle. All the points of the sphere are at the same distance from the center.

If 3 spheres have to be fitted inside the cylinder,

The sum of the diameter of the spheres will be equal to the height of the cylinder.

The spherical balls are identical and so will have the same diameter

Let the maximum diameter of the sphere that can fit in the cylinder is d cm

Then,

d + d + d = 20

3d = 20

d = 20/3 = 6.67 cm

r = 3.33 cm

The maximum radius that the spheres can have to fit in the cylinder is 3.33 cm.

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5 0
1 year ago
In 1999, there were 9860 Great Danes registered with the American Kennel Club. The number of registered Labrador Retrievers was
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Answer:

153,997 Labrador Retrievers

Step-by-step explanation:

Let's make an equation for this problem. We know that there were 9,860 Great Danes. The number of Labrador Retrievers was 6,997 more than 15 times the number of registered Great Danes. More than can be changed to a plus sign. 15 times the number of Great Danes is 15 times 9,860. The equation is now 15*9,860 + 6,997.

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A construction crew is placing a square window in a wall The window is 3 feet wide. The wall has a width of 11 feet In order for
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Answer:

4 feet on each side.

Step-by-step explanation:

Given :

Width of the wall = 11 feet

Width of the window = 3 feet

Now for the window to be placed in the center of window :

$=\frac{11-3}{2}$

$=\frac{8}{2}$

= 4 feet

Therefore, in order to place the window on the center of the wall, 4 feet space must be there on each side of the window.

4 0
3 years ago
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