Answer:
the interest rate is .68% per year
Step-by-step explanation:
You deposit $4000 into a bank account and received $9 simple interest after 4 months. The interest rate was 0.68% per year.
Explanation:
STEP 1: Convert 4 months into years.
STEP 2: Find interest rate by using the formula , where I is interest, P is total principal, i is rate of interest per year, and t is total time in years. $9, P = $4000 and t = 0.3333 years, so
Answer: 9x+3
Step-by-step explanation: 4x-(-3 - 5x)
=4x+ 3 +5x [open the bracket]
=9x+3
Answer:
Step-by-step explanation:
You are correct. When dividing like bases, you subtract the lower exponent from the upper:
x - 3 = 2 so
x = 5. Good!!
Answer:
3
Step-by-step explanation:
the slope of the line is 3
ANSWER
Yes, it is a quadratic equation which is x² + 3x - 70 = 0
SOLUTION
Area = Length × Width
Let x be the Length, L = x
Length is 3 cm longer than its width, thus, W = x + 3
The Area is equal to 70m², thus, A = 70m²
In Mathematical representation,
A = L × W
70 = (x)(x + 3)
70 = x(x) + x(3)
70 = x² + 3x
0 = x² + 3x - 70
