(A) 2/3A= -24
A= -24 • 2/3
A= 48/3
A= 16
(B) 20= -B/0.2
20 • 0.2= -B
4= -B
-4= B
(C) Distance between Point A & Point B is 20
Answer:
x is mL of 25% acid and y is mL of 50% acid
We set up 2 equations:
A) x + y = 250
B) .25 x + .50y = .35 * 250 which equals
B) .25x + .50y = 87.50 Multiplying A) by -.5
A) -.5x -.5y = -125 adding the equations we get
-.25x = -37.50
x = 150 mL
y = 100 mL
Source: http://www.1728.org/mixture.htm
Step-by-step explanation:
Answer:
no solutions.
Step-by-step explanation:
8x + 14 -4x = 9+4x -5
8x-4x -4x = 9-5-14
0x = -10
anything multiplied by 0 is 0, so it's impossible to get -10 by multiplying by 0
Answer:
Step-by-step explanation:
2√96 = 2* √(4 * 24)
= 2*2√24
= 4√24
That is equal to 2√96 but a simpler result is:
4√24 = 4 * √4*√6
= 4 *2 √6
= 8√6
The final price inculding tax after discount is $ 47 and expression used is:
Required expression = price of item - discount price + tax on item
<h3><u>Solution:</u></h3>
Given that 40% discount on an item costing $74 plus 7% tax
So cost of item = $ 74
Tax = 7 %
Discount = 40 %
The expression which can be used to find price after discount including tax is:
Required expression = price of item - discount price + tax on item
Let us first find the price after discount
Price after discount = cost of item - 40 % of cost of item
Price after discount = 74 - 40 % of 74

Thus the price after discount is approximately $ 44
<em><u>Now tax is 7 % which means 7 % of $ 44</u></em>
Price including tax = 44 + 7 % of 44
Price including tax = 
Thus the final price inculding tax after discount is $ 47