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Mathematics 6 Online
OpenStudy (anonymous):

Terrell and Mindi are organizing a neighborhood skateboarding competition. They need to build two mini ramps. Terrell can build the ramps in 12 hours. Mindi can build the ramps in 18 hours. Which shows the equation and solution for the time it will it take Terrell and Mindi to build the ramps if they work together? Round your answer to the nearest hour, if necessary.

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