Jill, Kim, and Erin start at the same time, walking around a circular track, walking in the same direction. Jill takes 1/2 hr to walk around the track. Kim takes 5/12 hr, and Erin takes 1/3 hr. (a) How many minutes does it take each person to walk around the track? (b) How many times will each person go around the track before all three meet again at the starting line?

Solve

There is a mound of g pounds of gravel in a quarry. Throughout the day, 300 pounds of gravel is added to the mound. Two orders of 500 pounds are sold and the gravel is removed from the mound. At the end of the day, the mound has 1,100 pounds of gravel. Solve for g. 9 = Number pounds.

Jim has $530 in his savings account and adds $11 per week. At the same time, Rhonda has $210 in her savings account and adds $19 per week. (a) How long will it take for Rhonda to have the same amount as Jim? weeks (b) How much will each have? 2$ Additional Materials O eBook

A newborn baby weighed 10 pounds at birth and was 15 inches tall. After 7 months the baby weighs 17 pounds and is 25 inches tall. Part A: What will the child's weight and height be on their first birthday? Round to the nearest whole number.  W(12)= H(12)=

Scott is saving to buy an accordion. In the first week, he put aside $60 that he received for his birthday, and in each of the following weeks, he added $12 to his savings. Is this arithmetic or geometric? What is the equation? How much has he saved after 11 weeks?

On Monday Paco goes to a running track to train. He runs the first lap of the track in 120 seconds. Each lap Paco runs takes him 10 seconds longer than his previous lap. (a) Find the time, in seconds, Paco takes to run his fifth lap. Paco runs his last lap in 260 seconds. (b) Find how many laps he has run on Monday. (c) Find the total time, in minutes, run by Paco on Monday. On Wednesday Paco takes Lola to train. They both run the first lap of the track in 120 seconds. Each lap Lola runs takes 1.06 tmes as long as her previous lap. (d) Find the time, in seconds, Lola takes to run her third lap. (e) Find the total time, in seconds, Lola takes to run her first four laps. Each lap Paco runs again takes him 10 seconds longer than his previous lap. After a certain number of laps Paco takes less time per lap than Lola. () Find the number of the lap when ihis happens.

5 Cala uses 2 pounds of Feed-All fertilizer for a 100-foot row of vegetables at her farm. At this rate, how many pounds of fertilizer would she use for a 450-foot row of vegetables? Explain.

Justin is making snow ball to build a fort in the winter break Justin can build 15 snow ball in an hour but 2 snowball melt every 15 minutes how long will It take him to build 210 snowballs?

Willie invests some money at 7.5%. He also invests $4,000 less than this amount at 6.5%. His total annual incomefrom the interest of these two investments is $1,000. How much money is invested at each rate?