Alana bought a stock, which dropped 10% from the previous day. the total cost of her stock, with the price drop, was $253.10. Which equation could she use to find the price of the stock before the price drop?

A.)z=253.10+0.10

B.)0.10z=253.10

C.)z+0.10(z)=253.10

D.)z-0.10(z)=253.10

The price of the stoke is denoted with Z.
Alana's total cost with the price dropped included is $253.10. This means that we can write the equation:
total cost with the price drooped=price of the stock before the price dropped - the dropped price

$253.10=Z-0.10(Z)

or, rewritten:

D.)z-0.10(z)=253.10

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ddsimmo ddsimmo · Answer 2 · 2017-11-01T18:24:27+01:00

ddsimmo ddsimmo

01-11-2017

i believe it is
z-0.10(z)=253.10

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Alana bought a stock, which dropped 10% from the previous day. the total cost of her stock, with the price drop, was $253.10. Which equation could she use to find the price of the stock before the price drop? A.)z=253.10+0.10 B.)0.10z=253.10 C.)z+0.10(z)=253.10 D.)z-0.10(z)=253.10

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Alana bought a stock, which dropped 10% from the previous day. the total cost of her stock, with the price drop, was $253.10. Which equation could she use to find the price of the stock before the price drop?

A.)z=253.10+0.10

B.)0.10z=253.10

C.)z+0.10(z)=253.10

D.)z-0.10(z)=253.10