Answer:
x = 15
Step-by-step explanation:
given that y varies directly with x
mathematically we can express this as
y = k x , where k is a constant
step 1: find k
given x = 3 and y = 21
y = k x
21 = k (3)
k = 7
hence the equation becomes
y = 7 x
when y = 105,
105 = 7x
x = 105 / 7 = 15
A 2 liter bottle would hold more.
It would be D. Since X=2 in the beginning, and and is 8 in the end. 2*4 is 8.
So, -5 times four would be 20, but not in this context. it would be -20.
Part A ) The equation is W = $ 6x where x ≤ 40, <span>W is the amount of wage earned and x hours in a week when there is no overtime.
Part B) </span>The equation is W = $ 6*40 + $9 y =$ 240 + $9 y where <span>y as the overtime hours = total number of hrs - 40.
Part C) </span>$ 240 + $9 y = $330. y is 10 hrs. Hence the total hours is 50 hrs.
ANSWER
EXPLANATION
The polynomial function has zeros at:
-8,-1 and 3
This means the polynomial can be factored as:
We expand the last two factors:
We expand further to get:
The polynomial in descending powers of x is said to be in standard form.
