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3 years ago

Ninety percent of what number is 45

Mathematics

1 answer:

hram777 [196]3 years ago

7 0

Divide 45 by 90%
45÷0.90=50

Check your work:
=50*90%
=50*0.90
=45

45 is 90% of 50

Hope this helps! :)

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Answer:

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Step-by-step explanation:

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3 years ago

Refer to the rectangle below. The length of the rectangle is x + 12. The width of the rectangle is x + 3.

Elis [28]

Answer:

$x^2+15x+36$

Step-by-step explanation:

The complete question is shown in the attachment.

The length of the rectangle is x + 12. The width of the rectangle is x + 3.

Recall that area of a rectangle is $Length \times Width$

In terms of x, the area is $(x+12)(x+3)$

Recall the distributive property of real numbers: $(a+b)(c+d)=a(c+d)+b(c+d)$

We apply this property to get:

$(x+12)(x+3)=x(x+3)+12(x+3)$

We expand again to get:

$(x+12)(x+3)=x^2+3x+12x+36$

We now simplify to obtain:

$(x+12)(x+3)=x^2+15x+36$

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3 years ago