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3 years ago

The perimeter of a rectangle is 90 centimeters. The length is 27 centimeters.

Mathematics

1 answer:

Kisachek [45]3 years ago

8 0

Answer:

width=18cm

Step-by-step explanation:

perimeter= 2(l+b)

90=2(27+b)

90/2=27+b

45-27=b

b=18cm

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A map using a scale inch of 1 to 5 miles shows a section of land with an area of 3.2 in.² what is the actual area of the section

Karolina [17]

Answer:

The actual area of land is 80 mi² .

Step-by-step explanation:

Given that we have to find the actual area so first we have to square the ratio(scale factor) :

1 in : 5 mi

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Next, the actual area will be :

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Step-by-step explanation:

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Solve the Equation <br> 2x-3=14<br> -x+3y=-6

andriy [413]

Step-by-step explanation:

If you lost "y" in the first equation.

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If first equation is correct.

$2x-3=14\qquad\text{add 3 to both sides}\\2x=17\qquad\text{divide both sides by 2}\\x=8.5\\\\\text{Put the value of x to the second equation:}\\-8.5+3y=-6\qquad\text{add 8.5 to both sides}\\3y=2.5\qquad\text{divide both sides by 3}\\y=\dfrac{2.5}{3}\\y=\dfrac{25}{30}\\y=\dfrac{5}{6}\\\\\boxed{x=8.5,\ y=\dfrac{5}{6}}$

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2 years ago

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Darya [45]

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2 years ago

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Montano1993 [528]

Answer:

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Step-by-step explanation:

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4 0

1 year ago