Answer:
x = 9.4
Step-by-step explanation:
The angle bisector divides the sides proportionally:
x/15.4 = 4.7/7.7
x = (15.4)(4.7/7.7) . . . . multiply by 15.4
x = 9.4
Answer:
mom is 45
ahsan is 16
Step-by-step explanation:
a+m=61
m-a=29
m=a+29
substitute
2a+29=61
2a=32
a=16
m=45
Answer:
Step-by-step explanation:
a) Tip = 15% of bill = 15% * 21 = 0.15 * 21 = $ 3.15
Amount including tips = 21 + 3.15 = $ 24.15
b) Tip = 15% of b = 0.15b
Amount including tips = b +0.15b
You solve for one variable like
y-5x=2
"y=5x+2"
9x+3y=58
and you plug it in into the other equation
9x+3(5x+2)=58
You solve for x and then plug in your answer for x into the other equation
*let's imagine x=8*
then:
y-5(8)=2
and solve for y
:D
