What is the sum of 2 numbers is 30 and their difference is 6 answer?

Mathematics

1 answer:

gayaneshka [121]3 years ago

7 0

The numbers are 18 and 12

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The measures of four interior angles of a pentagon are 63º, 119º, 125º, and 116º. which is the measure of the fifth interior ang

san4es73 [151]

The sum of interior angles of a pentagon is given by:
(n-2)*180
where
n=number of sides
thus the sum of angles in a pentagon will be:
(5-2)*180
=540
hence to evaluate the missing angles we shall proceed as follows:
sum of the given angles is:
63+119+125+116
=423
thus the missing angle, x, will be:
x+423=540
x=540-423
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pychu [463]

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2 years ago

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What is the first step to solve the following system of equations using substitution?

Akimi4 [234]

Answer:

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