Answer:
Step-by-step explanation:
Given
y jointly varies to x and z^2
Required
Find the equation
We start by writing out the variation;
Write as equation
Substitute values of x,y and z
Divide both sides by 7
Substitute k in
Notice that in the statement of the exercise are the values of a, b and c. Then, to evaluate the given expression, we replace the given values of a, b, and c. So, we have:
Therefore, the result of evaluating the given expression when a = 9, b = 3, and c = 7.4 is 1.4.
Answer: 0.65
Step-by-step explanation: To write a percent as a decimal, first remember that a percent is a ratio that compares a number to 100. We can think of 65% as the ratio 65 to 100 or 65 divided by 100. Remember that dividing by 100 moves the decimal point 2 places to the left.
<h2>
65% → .65 or 0.65</h2><h2 /><h3>
Therefore, 65% can be written as the decimal 0.65.</h3>
0.4 x 25. this will give you 10
Answer:
y - 15 = 1/750(x - 6000)
Step-by-step explanation:
Given that :
At price, p = $15 ; quantity, q = 6000
At price, p = $13 ; quantity, quantity = 4500
Expressing in the form (x, y) ;
(6000, 15) ; (4500, 13)
General form of a line equation :
y - y1 = m(x - x1)
x1 = 6000 ; y1 = 15 ; x2 = 4500 ; y2 = 13
The gradient, m :
(y2 - y1) / (x2 - x1)
(13 - 15) / (4500 - 6000)
- 2 / - 1500
Gradient, m = 1/750
Therefore,
y - 15 = 1/750(x - 6000)
