In converting 20 inches to centimeters, what unit (omit the number) would

Mathematics

2 answers:

Liono4ka [1.6K]3 years ago

5 0

Answer:

you would put inches in the denominator of the second term and centimeters in the denominator in the first term.

Step-by-step explanation:

the equation would be 20in / 1cm x 2.54 / 1 in.

stiv31 [10]3 years ago

4 0

Answer:

inches

Step-by-step explanation:

When you use proportions, you multiply your amount by a ratio. In the numerator, it is the unit desired while in the denominator, it is the unit that you want to cancel. In this case, you want to go from inches to centimeters. The procedure is:

$20in.\frac{2.54cm}{1in} =51cm$

As we can see, the units in the denominator are inches.

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I need help with geometry

satela [25.4K]

Answer:

45 is the answer

Step-by-step explanation:

first you have to know the sum of interior angle of that pentagon (540)

then add the all angle.

148 + x + 112 + 90 + 3x + 10 = 540.

or, 360 + 4x = 540

or, 4x = 540 - 360

or, 4x = 180

or, x = 180/4

or, x = 45

hope it will help you☺✌

6 0

2 years ago

Read 2 more answers

-5x+y=6<br> -3x+6y=-12<br> Solving systems of equations by substitution

Yakvenalex [24]

if you isolate y in the top equation to get y=5x+6 then you can substiture y for 5x+6 in the bottom equation because thats what y equals

as of now you have -3x+6(5x+6)=-12 but if you use the distrubite property you would get -3x+30x+36=-12

then if you subtract 36 from both sides you would get -3x+30x=-48 then combine like terms to get 27x=-48 then divide both sides by 27 to get $x=\frac{-48}{27}$ or x≈1.8