1. Angle addition postulate
2.x=15
We can use substitution method to solve for this system of equations. We calculate as follows:
<span>2x – 6y = –14
-6y = -14 -2x
y = x/3 + 7/3
</span>5x – 3y = –11
5x – 3(x/3 + 7/3) = –11
5x - x + 7 = -11
4x = -11 -7
4x = -18
x = -9/2
y = -9/2(3) + 7/3
y = 5/6
Answer: 48°
Step-by-step explanation: AD=AB, ∠ADC=∠ABC.
(5x-147)°=2x°, 3x=147, x=49.
So, ∠ADC=∠ABC=98°,
∠DCB=360°-{116°+2(98°)}
=360°-(116°+196°)
=360°-312°
=48°
Answer:
R = 450%/year
Equation:
r = (1/t)(A/P - 1)
Converting r decimal to R a percentage
R = 4.5 * 100 = 450%/year
Answer:
3.3
Step-by-step explanation:
Hour : H
subtract the 75 from both sidesso the variable would be on one side and the knowns would be on the other side
45H + 75 = 225
-75 -75
Divide by 45 from both sides
45H = 150
÷45 ÷45
3.33
