Morgan is training for a race, and runs and walks for a total of 1 hour and 18 minutes one day. Morgan runs for 3 km, walks for one, runs for 4 more kilometers and walks for two. Morgan walks at a speed that is 5 km/hr slower than the running speed. To the nearest minute, how much time does Morgan spend running?

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

what shape is

16.80 times .20= 3.36

step-by-step explanation:

c = 0.429t

step-by-step explanation:

the constant rate at which carlos harvests cassava is 35 minutes per 15 cassavas 15/35 = 0.429 cassava per minute

therefore, an equation that models the number of cassava (c) that harvest carlos in a time (t) is the following:

where t is the time in minutes.

this means that when 35 minutes have elapsed 15 cassava have been harvested, at 70 minutes 30 cassava have been harvested and so on.