maxahmax24
maxahmax24 maxahmax24
  • 04-03-2021
  • Mathematics
contestada

Sylvan drove 128.6 km each day for 8 days. He drove 44.3 km each day for 12 days. What was the total distance Sylvan drove?

Respuesta :

AnnyZeaMejia3366 AnnyZeaMejia3366
  • 04-03-2021

Answer:

If x and y are the hours she drove at the different rates, then:

x+y=5

80x+100y=440

-------

80x+100y=440

80x+80y=400

20y=40

y=2

x=3

She drove 3 hours at 80 kmh and 2 hours at 100kmh!!!!!!!

Step-by-step explanation:

Answer Link

Otras preguntas

Which explorers sailed for the Spanish?
What is the range of the function for the given domain? y = 2x - 5 D: (-2,0, 2,4} Select the correct answer. OR: {-9, 0,-1,3} OR: {9,-5, 9, 13} OR: {-9, -5, -1,
why is density equal to mass/volume?
2.18 as a mixed number
Consider the following partially completed income statements for merchandising companies and compute the missing​ amounts under the Flynt Corp. table below the
Any given demand or supply curve is based on the ceteris paribus assumption that ___________________.
Inflamed tissue is likely to become infected because:_________
what is the slope going through the points 7,9 and 14,9
Which of the following is an example of pseudoscience? A. Electromagnetism B. Horoscopes C. Radiometric dating D. Biology
Subtract (2x3 + 9x − 8) − (4x2 − 15x + 7)