Answer: E = 56
Step-by-step explanation:
E is proportional to √C
To remove proportionality, introduce a constant (k).
E = k × √C
From question,
E = 40 and C = 25
So,
40 = k ×√25
40 = k × 5
k = 8
Now,
C = 49
k = 8
E = ?
E = k√C
E = 8 × √49
E = 8 × 7
E = 56
The discount is 30%
Step-by-step explanation:
Given
Price of tape = $60
Discount = $18
In order to find the percentage, we will use the percentage formula
Hence,
The discount is 30%
Keywords: Percent, sale
Learn more about percentage at:
#LearnwithBrainly
Sine is the opposite to the hypotenuse
so if sinA=0.6, suppose the opposite is 6, the hypotenuse is 10
now find the other leg by using a²+b²=c²: 6²+b²=10², b=8
sinB=8/10=0.8
