(09.01) Lines CD and DE are tangent to circle A shown below if CE is 98° what is the measure of CDE a(56 b(49 c(131 d(82

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(09.01) Lines CD and DE are tangent to circle A shown below if CE is 98° what is the measure of CDE

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Ответ:

micky956

26.06.2020

Mathematics

Adult tickets cost $20, child tickets cost $15

Step-by-step explanation:

I'm going to assume that we have to say how much the tickets cost

x- cost of an adult ticket

y- cost of a child ticket

$\left \{ {{10x+3y=245} \atop {5x+y=115}} \right.$

$\left \{ {{10x+3y=245} \atop {y=115-5x}} \right.$

10x+3(115-5x)=245

10x+345-15x=245

-5x=-100

x=20

y=115-5*20=15

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(09.01) Lines CD and DE are tangent to circle A shown below if CE is 98° what is the measure of CDE a(56 b(49 c(131 d(82 PLS HELPP