24. Investment An advertisement for a bank states that vou can earn $50 interest in one year by investing in a savings account that earns 4% interest. Use the simple interest formula I = Prt, where / is the interest on an investment of P dollars at an interest rate r for t years. a. Which variable should you solve for to find the amount of money you need to invest to earn the $50 in interest? b. Solve the simple interest equation for the variable you identified in part (a). C. How much money do you need to invest?

Find an exponential equation that passes through the points (2,2.25) and (5,60.75).

The distance a moving body travels, d, varies directly with time, t, it moves. A train travels 100 miles in 2 hours a. Write the equation that relates d and t. b. How many miles would it travel in 5 hours?

The area of a circle varies directly as the square of the radius. A circular pizza with a radius of 6 inches has an area of 113.04 square Inches. a. Write the equation that relates the area to the radius. b. What is the area of a pizza with a radius of 9 Inches?

Use a calculator to help solve each problem. Alcohol absorption In one individual, the percent of alcohol absorbed into the bloodstream after drinking two glasses of wine is given by the following formula. Find the percent of alcohol absorbed into the blood after 12 hour. Pt=0.31-e-0.05t where, t is in minutes

The time required to empty a pool varies inversely as the rate of pumping. It took Lucy 2.5 hours to empty her pool using a pump that was rated at 400 gpm (gallons per minute). a. Write the equation of variation. b. How long will it take her to empty the pool using a pump rated at 500 gpm?

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Find the value of t

Elena has a saving account with $1,250. If she does not deposit or withdraw any money from the account and it earns 1.8% interest compounded daily, how much money is in her account after 120 days? Remember the formula for the amount of money in an account earning compound interest is... A = P(1 + k Which equation below would give the answer to this question? Select one: O A. A = 1250(1 +1.8 (120-0.328767) 120 (120-0,328767) 365 1.8 O B. A = 1250(1 + O C. A= 1250(1 + 0.018 (120-0.328767) 365 O D. A = 1250(1 + 0.018 (120-0.328767) 120

Based on the veterinarian's equation, in how many weeks will the puppy weigh 12.6 ounces?Enter your answer in the box. Only enter a number