Answer:
9 steps
Step-by-step explanation:
Let 
be the number of jumps
and 
be the number of steps
So the first case
Second case
Both cover equal distances so
So, one jumps is 9 steps.
Answer:
Step-by-step explanation:
There are 99 - 10 + 1 = 90 numbers between 10 and 99
There are 18 numbers that have at least one two digit.
So 22.5 per barrel
so 22.5
x represents the number of 22.5 barrels
y represents the number of 35 barrels
so
x+y=1250
then find the total cost
1250 barrels
27.5 per so mutiply by 1250 and get 34375 total cost
22.5x+35y=34375
we have 2 senctances
x+y=1250
22.5x+35y=34375
elimination
mulitply first equation by -35 to clear y
-35x-35y=-43750
add to second equation
-35x-35y=-43750
<u>22.5x+35y=34375 +</u>
-12.5x+0y=-9375
-12.5x=-9375
multiply -1
12.5x=9375
divie both sides by 12.5
x=750
subsitute
x+y=1250
750+y=1250
subtract 750
y=500
750 barrells of the 22.5 oil should be included and
500 barrells of the 35 oil should be included
Distribute on the left
217+111x-185=-4
Combine like terms
111x+32=-4
Sybtract 32 from both sides
111x=-36
Divide both sides by 111
x= -36/111
x=-12/37
Final answer: x=-12/37
Answer:
Step-by-step explanation:
hello :
note :
note : distance between A(X1,Y1) an B (X2,Y2) is :
AB= √((X2 - X1)² + (Y2 - Y1)²) (given point B(2 , 3)
in this exercice : X1 = 2 X2 = ? Y1 = 3 Y2 = ? d=AB=5
d² = (X2 - 2)² + (Y2 - 3)² =25
the points are a distance of 5 units from B (2, 3) if d = 5 :
the points are located on a circle with center B and radius 5
