At 2:30, they are 70 miles away, at 2:45, they are 55 miles away.
That means, in 15 minutes, they traveled 15 miles....thats 1 mile per minute.
so 2:45....55 miles away...at 1 mile per minute = 2:45 + 55 minutes =
3:40. <== when they arrive at Grandma's house.
3:40 - 1:00 = 2:40.....it took 2 hrs and 40 minutes for the trip....thats 120 + 40 = 160 minutes <== =so the family lives 160 miles from Grandma's house
Which is more 4/5 or 0.71? Because decimals are usually easier to read, convert the 4/5 to a decimal. To do this, divide the numerator by the denominator. 4 / 5 = 0.8.
0.8 is bigger than 0.71. So, 4/5 is definitely bigger than 0.71.
But what about 1.2 and 1 2/9? Again convert 1 2/9 to a decimal.
2/9 = 1.222...
And 1.222 repeating is bigger than 1.2
5/9p = -10
Multiply 5 on both sides
9p = -50
Divide both sides by 9
Final Answer: p= 5.555555555555556