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irina [24]
3 years ago
5

AB is the bisector of CAD. If the mCAB = 2x+30 and m DAB=5x+12 what is the mCAB

Mathematics
1 answer:
Dima020 [189]3 years ago
3 0

Answer:

CAB = 42

Step-by-step explanation:

Given

CAB = 2x + 30

DAB = 5x + 12

Bisector: AB

Required

Find CAB

Since AB bisects CAD, then

CAB = DAB

This is so because AB divides CAD into two equal parts which are CAB and DAB

CAB = DAB

Substitute values for CAB and DAB

2x + 30 = 5x + 12

Collect Like Terms

2x- 5x = 12 - 30

-3x = -18

Divide both sides by -3

x = 6

To solve for CAB, we simply substitute 6 for x in CAB = 2x + 30

CAB = 2 * 6 + 30

CAB = 12 + 30

CAB = 42

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Complete Question

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Step-by-step explanation:

Lets represent

The number of protein bars as p.

The number of bananas as b.

The number of sports drinks that Valerie buys as d.

From the question:

We are told

Protein bars are $1

Bananas are $0.50

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She will spend no more than twice as much on sports drinks as bananas

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A: p + 0.5b + 2d < 10

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