Acircular marble table top has a diameter of 42 in if the table top cost $280 what is the price per square inch

For this case we have that by definition, the area of a circle is given by:

Where:

r: It is the radius of the circle

We have as data that:

We found the table area:

Now, we find the cost per square inch:

Thus, the cost of the table is $0.20 per square inch.

The cost of the table is $0.20 per square inch.

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation: