In a sale the price of a reduced by $40 t0 $115 what was the original price of the bag

Mathematics

2 answers:

stich3 [128]3 years ago

3 0

Answer:

$155

Step-by-step explanation:

I believe you are saying that the original price of the bag was decreased by $40, and is now $115. Therefore, you add these two together to get the original price.

kirill115 [55]3 years ago

3 0

$155 because 40+115 equals 155!

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Five individuals have responded to a request by a blood bank for blood donations. None of them has donated before, so their bloo

AURORKA [14]

Answer:

The probability that at least four individuals must be typed to obtain the desired type is P=0.2.

Step-by-step explanation:

The donors are randomly selected to be typed.

The probability of selecting a random donor and it does not have type O is 4/5=0.8.

The probability of selecting the second donor and he does not have type O is 3/4, as one of the donors has been already tested and does not have type O.

Then, we can apply the same reasoning for the next two donors and calculate the probability that at least four individuals as:

$P(k=4)=\left(\dfrac{4}{5}\right)\cdot\left(\dfrac{3}{4}\right)\cdot\left(\dfrac{2}{3}\right)\cdot\left(\dfrac{1}{2}\right)=\dfrac{1}{5}=0.2$