Find the variable. m angle BDJ=7y+2 , m angle JDR=2y+7

Mathematics

1 answer:

Anna35 [415]3 years ago

3 0

The value of the variable y is 9 given that BDJ=7y+2 and angle JDR=2y+7

From the attached diagram, we can see that the sum of m<BDJ and m<JDR is complementary (i.e. sums up to 90degrees)

Given the following

m<BDJ = 7y + 2

m<JDR = 2y + 7

Summing up to 90

m<BDJ + m<JDR = 90

7y + 2 + 2y + 7 = 90

7y+2y+2+7 = 90

9y + 9 = 90

9y = 90-9

9y = 81

y = 81/9

y = 9

Hence the value of the variable y is 9

Learn more here: brainly.com/question/17247176

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