 My Math Forum Help turning word problems into equations please...
 User Name Remember Me? Password

 Algebra Pre-Algebra and Basic Algebra Math Forum

 October 7th, 2019, 11:41 AM #1 Newbie   Joined: Sep 2019 From: Canada Posts: 2 Thanks: 0 Math Focus: Algebra Help turning word problems into equations please... Hello, my class has just started exploring rational equations. I have no problem solving the equations on their own but when I need to convert information into these equations I can confuse myself. If anyone can help me with turning these two problems into rational equations, I'd be really grateful! 1. A school purchases a load of t-shirts with their emblem for \$450. They then put aside two t-shirts, and sell the rest for \$560, at \$10 per shirt. How many shirts were in the initial shipment? 2. Two boys are walking for 30km. Boy-A walks at a pace 1.4km/h faster then Boy-B. Boy-A stops during his walk to talk with a friend for 20min, however, he still completes the 30km walk 2hrs before Boy-B. How long did they each take to complete the walk? Thank you for your help ! Last edited by SimpleMinded; October 7th, 2019 at 12:26 PM. October 7th, 2019, 11:58 AM #2 Senior Member Joined: Jun 2019 From: USA Posts: 310 Thanks: 162 Note: Put a backslash before your dollar signs (\\$). The forum uses dollar signs as a tag for LaTeX code. 1. Let N be the number of t-shirts ordered. You are told two things: (a) A school purchases a load of t-shirts with their emblem for \$450. Equation:$Buying~cost = \$450$ Implied equation: $\$450 = N\cdot (buying~cost~per~shirt)$(b) Then, they put aside two t-shirts and sell the rest for \$560, \$10 per shirt. Equation:$(N-2~shirts)\cdot (\$10/shirt) = \$560$(a) is irrelevant, (b) allows you to find N. 2. "Two boys are walking for 30km." Let$L = 30~km$be the distance travelled. "Boy-A walks at a pace 1.4km/h faster then Boy-B." Let$V_A$and$V_B$be their respective speeds. Then$V_A = V_B + 1.4~ km/hr$. "Boy-A stops during his walk to talk with a friend for 20min" Let$t_A$and$t_B$be the time Boy A takes and the time Boy B takes to walk the 30 km. Time is length/speed, so$\displaystyle t_A = \frac{L}{V_A} + \frac{1}{3} hr$. (Note I changed to hours to make the units consistent.) Assume Boy-B doesn't stop,$\displaystyle t_B = \frac{L}{V_B}$. "[Boy-A] still completes the 30km walk 2hrs before Boy-B."$t_A = t_B - 2~hr\$ I hope this helps. Thanks from SimpleMinded Tags algebra, equation, equations, help or teach, problem, problems, turning, word Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post Hanagal15 Algebra 1 September 10th, 2014 06:40 PM okcomputer76 Algebra 8 March 22nd, 2014 08:47 PM xcrbprame87 Algebra 2 September 20th, 2013 12:55 PM dthomas86 Algebra 3 February 28th, 2013 12:58 PM okcomputer76 Linear Algebra 0 December 31st, 1969 04:00 PM

 Contact - Home - Forums - Cryptocurrency Forum - Top      