Answer:
65 kph
Step-by-step explanation:
There were a total of 7 hours. So two hours were at 70 and the other 5 hours at 63: the equation would be: (70+70+63+63+63+63+63)/7=65
Answer:
Alan will win. It will take 12 years.
Step-by-step explanation:
The <em><u>correct answer</u></em> is:
3 yards
Explanation:
According to the attached diagram, Pearl bought 5 1/2 yards of ribbon. She first cut off 9/10 of a yard. This gives us
5 1/2 - 9/10
We first find a common denominator. The first number that both 2 and 10 will divide into is 10; we multiply 2 by 5 to make 10, so we multiply the numerator by 5, which gives us 5/10:
5 5/10 - 9/10
We need to borrow from the 5. This makes it 4, and gives us 10/10 to add to our fraction:
4 (10/10+5/10) - 9/10
4 15/10 - 9/10
4 6/10 = 4 3/5
Now Pearl cuts 1 3/5 yards off:
4 3/5 - 1 3/5 = 3 0/5 = 3
12 1/4- 1 1/2 >>> Convert fractions to decimals:
12.25- 1.5 = 10.75 >>> Convert decimals back to fractions:
10 3/4 >>> Add miles from the morning: 10 + 10 3/4 = 20 3/4 miles