16BrainyFizz 16BrainyFizz

22-09-2017
Mathematics

contestada

Find the values of x and y.

a) x = 20, y = 7
b) x = 10, y = 8
c) x = 50, y = 40
d) x = 10, y = 12

Find the values of x and y a x 20 y 7 b x 10 y 8 c x 50 y 40 d x 10 y 12 class=

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choixongdong choixongdong

22-09-2017

4x+5x = 90
9x = 90
x = 10

10y + 10 + 5x = 180
10y + 10 +5(10) = 180
10y + 60 = 180
10y = 120
y = 12

answer
d) x = 10, y = 12

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ANCKPOP ANCKPOP

22-09-2017

the answer is the letter D, everytime that you see a square between 2 or more angles means that the adition of all the angles is 90

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