Answer:
As current currency exchange rate: 1 pound = 1.2 dollar, therefore:
(30,12) (25,10) shows an equivalent ratio of pounds to dollars.
Because 30/25 = 12/10 = 6/5 = 1.2
Hope this helps!
:)
Answer:
Step-by-step explanation:
new dimensions of prism: x by (x+4) by (2x).
volume = x(x+4)(2x) = 2x³ + 8x²
2x³ + 8x² = 450
2x³ + 8x² - 450 = 0
x³ + 4x² - 225 = 0
x = 5 in
Add three to both sides: 4|8n+10|=56
divide by 4: |8n+10|=14
so 8n+10 could be 14 or -14
if it's 14, n=0.5
if it's -14, n=-3.5
(2/3)*x - (1/2)*x = 3
*make common denominators
(2*2)/(2*3)*x - (3*1)/(3*2)*x = 3
(4/6)*x - (3/6)*x = 3
(1/6)*x = 3
x = 3*(6/1)
x = 3*6
x = 18 gallons of gas