Jenny can jog twice as fast as she can walk. She was able to jog the first 12 miles to her grandmother house but then she tried and walked the remaining 3 miles. If the total trip took 2 hours then what was her promedio jogging speed

Solución

Jenny can jog twice as fast as she can walk. She was able to jog the first 12 miles to her grandmother house but then she tried and walked the remaining 3 miles. If the total trip took 2 hours then what was her average jogging speed

Solución

joging speed : 9

Pasos de solución

Translate the problem into an equation:

\frac{12}{x} + \frac{3 \cdot 2}{x} = 2

Resolver para

x, \frac{12}{x} + \frac{3 \cdot 2}{x} = 2 : x = 9

joging speed : 9

Ejemplos populares

what is the the radius of a circle with a circunferencia of 25.12 the sum of two numbers is 35. three times the larger number is the same as 4 time the smaller number. find the larger number the quotient of a number and-7 decreased by 2 is 10 find the number The radio of a circle is 14 ft. Find its area in terms of twice number is less than 30