# math

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A 6 ft pole casts a shadow of 8ft long while a nearby flagpole casts a shadow of 56 ftlong. What is the height of the flagpole?

• math -

Cross multiply and solve for x.

6/8 = x/56

• math -

the ratio is 6/8 (height actual to shadow)

Flagpole height / 56 = 6/8

flagpole height / 56= 3/4

so, the flagpole height is 56*3 / 4 = 42

• math -

7x+4<1_2(4x+3).

• math -

The present ages of father and his son are in ration10:3. If the son 15 years old now in how many years will the ratio of their ages be 2 :1 ?

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