Myra asked annabelle to buy her some perfume while she was in france, annabelle paid 200 euros for it. myra wants to pay annabelle back in
u. s. dollars. if the foreign exchange rate between the u. s. dollar and the euro is 1: 0.7. how much should myra pay annabelle?
a
$140
b.
$240
c.
$286

c) 286

Step-by-step explanation:

Since Annabelle paid 200 euros

And Myra wants to pay Annabelle back in U.S. dollars.

Let Myra paid amount to Annabelle in U.S. dollar be x

\frac{1}{0.7}=\frac{x}{200}

⇒\frac{1*200}{0.7}=x

⇒\frac{200}{0.7}=x

⇒285.7=x

⇒285.7≈286

so, myra paid annebelle $286 usd

C.

$286

Step-by-step explanation:

Plzz visit my profile and help me with my questions.

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