Mentally your dividing the 12.50 by 10 and then thats 1/10 of it.
x = 2
given 2 secants from an external point then
Then the product of the external part and the entire secant equals the product of the external part and the entire secant of the other secant.
3 ( 3 + 5 ) = 4 (4 + x )
3 × 8 = 4 ( 4 + x ) ⇒ 24 = 4 ( 4 + x )
divide both sides by 4
6 = 4 + x ⇒ x = 6 - 4 = 2
Answer:
2.3 * 80 + 4.7 * 70
Step-by-step explanation:
Answer:6
Step-by-step explanation: i say 6 is because fractions are not rational answers
Answer: There were 220 robberies in Springfield in 2010
Step-by-step explanation: If the robberies were reported to be down 20% and the new figure is 176, it simply means the figure 176 depicts 80% (or 0.8) of the figure from year 2010.
We shall take the figure in year 2010 as x, which is 100% (or 1.0) and year 2011 is 176 which is 80% (or 0.8). What we now have is;
176/x = 0.8
176/x = 4/5
By cross multiplication we now have;
(176 x 5)/4 = x
880/4 = x
220 = x
Therefore, there were 220 robberies in Springfield in 2010
