Bernice estimated that 69% of 242 is 168. Is her estimate reasonable? No, because her calculation should be 60% of 250.
No, because her calculation shodid be 7096 of 250.
Yes, because her calculation should be 60% of 240.
Yes, because her calculation should be 70% of 240

A.

No, because her calculation should be 60% of 250.

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4