Answer: 80 items
Step-by-step explanation:
The equation x=0.7x + 24 can be rewritten as 1x = 0.7x + 24 because the is a number on in front of any variable.
1x = 0.7x + 24 subtract 0.7 from both sides
-0.7 -0.7
0.3x = 24
x = 80
The complete question in the attached figure
Let
x-------------> pounds of almonds-------> (<span>$7 per pound)
</span>y-------------> pounds of cashews-------> ($10 per pound)
z-------------> pounds of walnuts-------> ($12 per pound)
we know that
x+y+z=12---------------> equation 1
7x+10y+12z=118---------> equation 2
z=2+y--------------------> equation 3
<span>replacing equation 3 in 1 and 2
</span>x+y+(2+y)=12----------> x+2y=10--------> equation 4
7x+10y+12*(2+y)=118--> 7x+10y+24+12y=118--> 7x+22y=94 --> equation 5
using a graph tool-----> to resolve the system of equations
see the attached figure
the solution is the point (4,3)
x=4
y=3
z=2+y-----> z=2+3-------->z=5
pounds of almonds are 4
pounds of cashews are 3
pounds of walnuts are 5
therefore
the answer is the option
a. The customer buys 1 more pound of walnuts than almonds and 1 more pound of almonds than cashews
I dont think this may be right but i think it is 401
Answer:
A)2/y
B)2/(y-1)
C)2/(y-2)
D)2/(y-3)
Step-by-step explanation:
Based on the information available :
Let the total number of marbles = y
Number of blue marbles = 2
Game ends when Hayley draws a blue marble.
NB: Marble is drawn without replacement
A.) P(game ends on first draw) = (number of blue marbles) / total number of marbles
P(game ends on first draw) = 2/y
B.) P(game ends on second draw) :
If game doesn't end on first draw, then no blue marble was drawn on the first pick
P(game ends on second draw) = 2/(y-1)
C.)P(game ends on third draw) = 2 / (y-2)
D.)P(game ends on fourth draw) = 2/(y-3)
There isn't enough information to solve the remaining problems
Velocity with wind = 1,980 / 4.5 = 440 mph
Velocity against wind =1,980 / 5.5 = 360 mph
Plane in still air - wind speed = 360
Plane in still air + wind speed =440
Adding both equations:
2*Plane in still air = 800
Plane in still air = 400 mph
Plane in still air + wind speed =440
Therefore, wind speed = 40 mph