Answer:
<A =21
<B = 84
<c = 75
Step-by-step explanation:
<A =x
<B = 4x
<C =5x-30
The sum of A+B+C = 180
x+ 4x + 5x-30 = 180
Combine like terms
10x -30 = 180
Add 30 to each side
10x-30+30 = 180+30
10x = 210
Divide by 10
10x/10 = 210/10
x= 21
Since x =21 we can find the value of the angles
Substituting x into the equations for angles A, B and C
<A =21
<B = 4x = 4*21 = 84
<C = 5x-30 = 5*21-30 = 105-30 = 75
Answer:
The discount% is 15%
Step-by-step explanation:
Given : The price of a sweater was slashed from Rs 960 to Rs 816 by a shopkeeper in the winter season.
To find : The rate of discount given by him?
Solution :
According to question,
The market price of the sweater is Rs.960
The selling price of the sweater is Rs.816
The discount on the sweater is given bY
Discount % is given by
Therefore, The discount% is 15%.
Simplified is 325 and not simplified is 325.561
1.28 = 128 * 10^-2
128 * (1/10^2)
128 / 10^2
128 / 100
1.28
Because, it's literally the same thing mathematically if you worked it out. Though, as I'm sure you're aware, it's just a much shorter and cleaner way of writing out large or small numbers.
Luckly i still have my notes and the answer was about 3.1%. I hope this helped.
