It would be 25000 no decimal or fraction 25,000.0
Answer:
x= hot dogs
y= soda
Total sold
1 x + 1 y = 87 .............1
2 x 0.50 y = 78.50 .............2
Eliminate y
multiply (1)by -0.50
Multiply (2) by 1.00
-0.50 x -0.50 y = -43.50
2 x + 0.50 y = 78.50
Add the two equations
1 x = 35.00
/ 1
x = 35.00
plug value of x in (1)
1 x + 1 y = 87
35 + y = 87
y = 87 -35
y = 52
y = 52.00
x= 35 hot dogs
y= 52 soda
Step-by-step explanation:
Answer:
Option A
Step-by-step explanation:
Let's denote:
x is the number of albums Teresa downloads.
y is the number of individual songs Teresa downloads.
=> 9x + y = 25
Let's check:
Option A: x = 2 and y = 7 => 9 x (2) + 7 = 18 + 7 = 25 => valid
Option B: x = 1 and y = 8 => 9 x (1) + 8 = 9 + 8 = 17 => invalid
Option C: x = 4 and y = 5 => 9 x (4) + 5 = 36 + 5 = 41 => invalid
Option D: x = 3 and y = 6 => 9 x (3) + 6 = 27 + 6 = 33 => invalid
Answer:
z=4√5
Step-by-step explanation:
use the Pythagorean theorem to set up a system of equations. a^2 + b^2 = c^2
16+4= 20
20^2 = x^2 + z^2 400=x^2 + z^2 x^2=400-z^2
z^2 = 4^2 + y^2 z^2 = 16 + y^2
x^2 = 16^2 + y^2 x^2 = 256 + y^2 y^2=x^2-256
z^2=16+x^2-256
z^2=16+400-z^2-256
z^2=160-z^2
2z^2=160
z^2=80
z= √80 =4√5
