3 years ago

For what values of y:s the value of the fraction 4.5−2y/5 less than the value of the fraction 2−3y/10 ?

Mathematics

1 answer:

Andre45 [30]3 years ago

4 0

Answer:

7 < y

Step-by-step explanation:

The relation you're interested in is ...

(4.5 -2y)/5 < (2 -3y)/10

9 -4y < 2 -3y . . . . . . . . . multiply by 10

7 < y . . . . . . . . . . . . . . . . add 4y-2

The value of the first fraction will be less than that of the second fraction for values of y greater than 7.

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The sum of the angle measures of a triangle is 180°. Find the value of x . Then find the angle measures of the triangle.

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Answer:

Step-by-step explanation:

The sum of the angle measures of a triangle is 180°. Find the value of x . Then find the angle measures of the triangle.

find the value of x

x + 2x + x + 8 = 180

4x = 180 - 8

4x = 172

x = 172 : 4

x = 43

find angles

2x = 43 * 2

2x = 86°

-------

x = 43°

--------

x + 8 = 43 + 8

x = 51°

-----------------------

check

86 + 43 + 51 = 180°

the answer is good

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