10
Select the correct answer.
The tables show the subscription costs for two magazines. What is the ratio of the cost of Magazine A to the cost of Magazine B?
Magazine A
Magazine B
Duration of Subscription
in Subscription Cost
(dollars)
Duration of Subscription Subscription Cost
(dollars)
12 months
36
12 months
24 months
72
24 months
36 months
36 months
32
A. 9:4
B. 9:7
C. 9:8
D. 9:5
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answer: a. 74

step-by-step explanation:

it shows divided evenly, so add the 37+37 = 74

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.