Answer:
Step-by-step explanation:
A(7,1), B(5,-6)
(AB)² = (-6-1)² + (5-7)² = 53
AB = √53
Answer:
refer to attached
Step-by-step explanation:
The rest of the table has been filled in,
See attached below
Let the number of quarter be x and that of nickels be y
total number of coins will be:
x+y=85
thus
x=85-y.........i
total amount of money will be:
0.25x+0.05y=14.25....ii
substituting i in ii we get:
0.25(85-y)+0.05y=14.25
21.25-0.25y+0.05y=14.25
7=0.2y
y=7/0.02
y=35
thus
x=85-35=50
the number of quarters was 50 and that of nickels was 35
Answer:
23.5 miles a gallon, and $18.90 trip cost.
Step-by-step explanation:
16 is the full tank, and 6 is 3/8ths of that, so 6 gallons were used during the trip.
Miles per gallon:
141/6 = 23.5
The fuel mileage was <em>23.5</em> miles a gallon.
Cost:
6 * 3.15 = 18.9
The cost of the trip was <em>$18.90.</em>
