Hello I need help with geometry

Mathematics

2 answers:

N76 [4]3 years ago

7 0

Set (5x+85) equal to (11x+61) because these are vertical angles, meaning they have the same degree value.

5x+85=11x+61
subtract 5x from both sides

85= 6x+61
subtract 61 from both sides

24=6x
divide 6x from both sides

x=4

now for z, as you can see, (5x+85) and z actually create a line! and a line=180 degrees! so if we plug in 4 as the x value

5 (4) + 85 = 20 +85 = 105
180-105 = 75

z= 75

Andre45 [30]3 years ago

5 0

:podriadarlo mas s acercarpocolo mas y uelvo lo resn

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Read 2 more answers

4/5 + 3/4 =

marshall27 [118]

The topics you should learn are equating denominators and fractions. This is summing up simple fractions.

So we have to make denominators' numbers the same in order to sum up them all (we can sum fractions if the denominators are the same) , and we did it by cross product (that thing on the picture)

Equating by lcm (least common multiple) is the easiest way, because you might see bigger numbers on other questions, and cross product will bring much bigger numbers, so this technic might confuse you.

By the way lcm of 4 and 5 is already 20

Hope it helps!