llxxjokexxll
llxxjokexxll llxxjokexxll
  • 21-09-2018
  • Mathematics
contestada

you buy 75 candy bars at a cost of $0.49 each what is the total cost of 75 candy bars? use mental math

Respuesta :

rgoff786 rgoff786
  • 21-09-2018

It took me a second but its $36.75

Answer Link
s1m1
s1m1 s1m1
  • 21-09-2018
The cost= 75 candy bars •$0.49;
75•49/100= ((75•50)-75)/100= ((75•100/2)-75)/100= ((7500/2)-75)/100=
(3750-75)/100= 3675/100= 36.75

Or
75•50cents= 37.5
considering you pay 50 cents instead of 49;
37.5 -0.75= 36.75
Now you took away the extra penny between 50 and 49
Answer Link

Otras preguntas

Divide and round the answer to 3 decimal places 33.587\13
Name three types of modified plant structures essential for storage of water and nutrients and provide one axample of each type?
Which statement correctly explains the connection between the Dred Scott decision in the Supreme Court and the revolutionary actions of John Brown in Kansas and
what is the power input needed for 70kg person to go up 5 m of stairs in 2 seconds
If you spend $35 in a jacket during a 60% off clearance sale, what is the original price of the jacket?
Which reform to the American education system began in the early nineteenth century?
What regions did France control in North America?
Mark the statements that correctly describe British rule in India. A.The British first assumed control of India by fighting a terrible war. B. The British East
how are stock prices determined
What does pie equal