Answer:
9.6 miles per hour
Step-by-step explanation:
First find the unit rate.
25/4= 0.16 miles per minute
Then multiply by 60 ( which we know theres 60 minutes in a hour.)
0.16x60=9.6
Answer: the cost of a milkshake is $2.59
Step-by-step explanation:
Let x represent the cost of a banana split.
Let y represent the cost of a milkshake.
At the ice cream shop, one banana split and five milkshakes cost $16.24. This is expressed as
x + 5y = 16.24- - - - - - - - - - - - -1
If three banana splits and two milkshakes cost $15.05. This is expressed as
3x + 2y = 15.05- - - - - - - - - - - - -2
Multiplying equation 1 by 3 and equation 2 by 1, it becomes
3x + 15y = 48.72
3x + 2y = 15.05
Subtracting, it becomes
13y = 33.67
y = 33.67/13
y = 2.59
Substituting y = 2.59 into equation 1, it becomes
x + 5 × 2.59 = 16.24
x + 12.95 = 16.24
x = 16.24 - 12.95
x = 3.29
If n = –2, then m is equal to 13;
If n = 0, then m is equal to 7;
If n = 1, then m is equal to 4
<span>(3^(5))/(3^(-6)) = 1/3^-1 = 3</span>
Answer:
3, -9, 27,-81,243,-729,2187,-6561,19683,-59049,177147,-531441
the sum is −398,580
