The answer ur looking for is 25
Answer:
360
Step-by-step explanation:
If x is gallons of 70% antifreeze solution, then:
0.70x + 0.20(90) = 0.60(x + 90)
0.70x + 18 = 0.60x + 54
0.10x = 36
x = 360
Answer:
a
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
To calculate m use the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = B(- 4, 2) and (x₂, y₂ ) = C(- 2, - 2)
m =
=
= - 2
y = - 2x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (- 2, - 2), then
- 2 = 4 + c ⇒ c = - 2 - 4 = - 6
y = - 2x - 6 ← equation of line through B and C
Answer:
A = 3, B = 10
Step-by-step explanation:

= 
=
×
× 
= 3i
in the form Ai
with A = 3 and B = 10