This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
Here are the solutions to the problems. 1) We assume the question asks to solve for x in the equation 2x + 4 = 8. Step 1: Subtract 4 from both sides of the equation. 2x + 4 - 4 = 8 - 4 2x = 4 Step 2: Divide both sides by 2. (2x)/(2) = (4)/(2) x = 2 The value of x is 2. 2) We need to solve for x in the equation 300 × 9x = 90,000. Step 1: Multiply the constants on the left side. 300 × 9x = 2700x So the equation becomes: 2700x = 90,000 Step 2: Divide both sides by 2700 to find x. x = (90,000)/(2700) x = (900)/(27) Step 3: Simplify the fraction. x = (100)/(3) The value of x is (100)/(3). 3) We are given the principal amount, the final amount, and the time, and we need to find the rate of simple interest. Given: Principal (P) = Rs. 12500 Amount (A) = Rs. 15500 Time (T) = 4 years Step 1: Calculate the Simple Interest (SI). The simple interest is the difference between the amount and the principal. SI = A - P SI = Rs. 15500 - Rs. 12500 SI = Rs. 3000 Step 2: Use the simple interest formula to find the rate (R). The formula for simple interest is SI = (P × R × T)/(100). We can rearrange this formula to solve for R: R = (SI × 100)/(P × T) Step 3: Substitute the given values into the formula. R = (3000 × 100)/(12500 × 4) R = (300,000)/(50,000) R = 6 The rate of interest is 6%. Comparing this with the given options: A. 3% B. 4% C. 5% D. 6% The correct option is D. The rate of interest is D. 6\%. Send me the next one 📸