Answer:
Step-by-step explanation:
21≤2.50+5s subtract 2.50 from both sides
18.50≤5s divide by 5
s≥3.7 he can buy up to 3 bags at $5 each
Answer:
add 9 to each side
Step-by-step explanation:
x^2 -6x = 5
Take the coefficient of the x term
-6
Divide by 2
-6/2=3
Square it
3^2 =9
Add 9 to each side
x^2 -6x+9 = 5+9
(x-3)^2=14
28 is not divisible by 8, but is divisible by 2.
Just to clarify, a correct statement would be “any number divisible by 8 is also divisible by 2.”
Hope this helps!
Answer:
C.) f(x) = −4x + 200
Step-by-step explanation:
Since the number is decreasing, you know the slope will be negative, eliminating the first two choices. The equation in the last choice does not match the given data, so it can be eliminated.
In other words, the easiest way to solve this problem is to check the answers against the given data.
_____
If you want to write the equation from scratch, you need to find the slope. That is ...
(change in number of cars)/(change in weeks) = (184 -192)/(4 -2) = -8/2 = -4
This matches only one answer, but you can go on to finish the equation by starting with point-slope form:
y -192 = -4(x -2)
y = -4x +8 +192 . . . . add 192, eliminate parentheses
y = -4x + 200 . . . . matches choice C.)
Answer:
Y = - 2/3x + 1
Step-by-step explanation:
-2/3 = rise/run = slope
+1 = y intercept