If you came home from a trip with 150 south african rand, 350 kuwaiti dinars and 200 japanese yen, how much would you have in u. s. dollars?

We know that:

1 south African rand = 0.075 usd

1 kuwaiti dinar = 3.31 usd

1 japanese yen = 0.0089 usd

Therefore the total money in usd is:

total usd = 150 rand * (0.075 usd / 1 rand) + 350 dinar * (3.31 usd / 1 dinar) + 200 yen * (0.0089 usd / 1 yen)

total usd = 1,171.53 us dollars 

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

its 50 miles away from the starting point