Sumali sa IDNStudy.com at makuha ang mabilis at kaugnay na mga sagot. Ang aming komunidad ay nagbibigay ng eksaktong sagot upang matulungan kang maunawaan at malutas ang anumang problema.

Annie bought 3/4 kg of cocoa powder, which cost ?12.92 per kg.
a. Estimate the cost.
b. Find the exact amount she had to pay.


Sagot :

Estimating it makes it turn to ?9.69 = ?10.00 or ?9.7 in 3 kg. Exact of it is ?9.69 in 3 kg.
Estimate: $13/kg. 

So it is 3/4 * $13 = $9.75. 

For exact, it is 3/4 * $12.92 = $9.69