Given:
∠d and ∠e are complementary angles.
m∠d=5x+3 and m∠e=3x-1
To find:
The value of x.
Solution:
If two two angles are complementary angles, them there sum is 90 degrees.
(Complementary angles)
Divide both sides by 8.
Therefore, the value of x is 11.
2x+3x=5x
the +10-10 cancel each other out so it's just 80
5x+80=180
5x=180-80
5x=100
x=20
Answer:
30 = 9x + 7
Step-by-step explanation:
The total weight of the bundle = 30 pounds
The weight of the bricks = x pounds
But he carried 9 bricks = 9x pounds
He also carried additional 7 pounds of concrete block.
An equation to show the total weight he carried is
30 pounds = (9x + 7) pounds
Since 9x represents the total weight of the bricks he carried
7 represents the weight of the concrete block
And 30 pounds represents the total weight of everything he carried.
Answer:
21
Step-by-step explanation:
1) A=p(1.015)^t
2)800=500(1.015)^t
800/500=1.015^t
Log(800/500)=t*log(1.015)
t=log(800/500)/log(1.015)
T=log(1.6)÷log(1.015)
T=31.6 years