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mylen [45]
3 years ago
7

If the area is 45 meters square, what is the minimum number of square-tiles with sides of 30 cm by 30 cm that are needed to cove

r the patio?
Mathematics
1 answer:
nexus9112 [7]3 years ago
3 0
22500 total
45*100/30=150
Square that = 22500
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A rectangle has a heigh if 4x^3 and a width of x^3+3x^2+2x
Andrews [41]

Answer:

Area = 4x^6+12x^5+8x^4

Step-by-step explanation:

<u>The Complete Question:</u>

A rectangle has height  4x^3  and width  x^3+3x^2+2x. What is the area of the rectangle in terms of x?

<u>Solution:</u>

The formula for the area of a rectangle is:

Area = Height * Width

Both the expressions for height and width is given, so we just need to multiply both the expressions to get an expression, in x, for the area of the rectangle. The algebra is shown below:

A=(4x^3)(x^3+3x^2+2x)\\A=4x^6+12x^5+8x^4

This is the area of the rectangle.

8 0
3 years ago
What is the solution to inequality of[9n-9]+10=7​
Brilliant_brown [7]

Answer:

n = 2/3

Step-by-step explanation:

[9n-9]+10=7​

Subtract 10 from each side

9n -9+10-10 =7-10

9n -9 = -3

Add 9 to each side

9n -9+9 = -3+9

9n = 6

Divide by 9

9n/9 = 6/9

n = 2/3

4 0
3 years ago
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That’ll be 70 percent.
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Wilda can do a job in 4 hours that karla needs 5 hours to do. If wilda works 1 hour before karla joins her, how long will it tak
mezya [45]
Wilda can do the job in 4 hours ... she does 1/4 (or 0.25) of it each hour.
Karla can do it in 5 hours ... she does 1/5 (or 0.2) of it each hour.

Wilda worked alone for 1 hour ... 0.25 of the job was done before her helper
arrived.  So only 0.75 of the job remained to be done together.

Working together, they accomplish (0.25 + 0.2) = 0.45 of the job in 1 hour.

How many times do they need to do  0.45  of the job in order to finish
the  0.75  of it that remains ?  That's the number of hours it will take them,
working together.

0.75 / 0.45  =  <em>1 and 2/3</em>

After Wilda worked alone for 1 hour and Karla came along to join her, it will
take them another  <em>1 hour and 40 minutes</em> to finish the job and go for a swim.
8 0
3 years ago
Malachy was thinking of a number. Malachy halves the number and gets an answer of 67.3.
Nimfa-mama [501]

Step-by-step explanation:

Let the number be x.

ATQ,

Malachy halves the number and gets an answer of 67.3.

\dfrac{x}{2}=67.3

This the equation for the given statement.

It can also be written as :

x=2\times 67.3\\\\x=134.6

Hence, this is the required solution.

4 0
3 years ago
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