What is value of x and y

explain

Step-by-step explanation:

triangle ADB and ADC are congruent.

So ∠B = ∠C

∠B = 47

∠ADC = ∠ADB

∠ADC + ∠ADB = 180   { straight angle}

2∠ADB =180

∠ADB = 180/2

x = 90

In ΔADB,

∠B + x + y = 180    { sum of all angles of triangle}

47 + 90 + y = 180

137 + y = 180

y = 180 - 137

y = 43

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2