3 years ago

What was the original price if: after a 70% discount, it became $3

Mathematics

1 answer:

Tamiku [17]3 years ago

6 0

Your Answer Would Be : $5.10

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A non-profit organization provides homeless children with backpacks filled with school supplies. For the last 5 years the organi

Nady [450]

Answer:

290.6 backpacks per year

Step-by-step explanation:

The average of 5 numbers is 1/5 of their sum:

average = (278 +310 +320 +242 +303)/5 = 290.6

The average number of backpacks given out in the last 5 years is 290.6, about 291.

3 0

3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Nady [450]

Answer: b) -0.625

<u>Step-by-step explanation:</u>

The formula for the z-score is:

$z=\dfrac{x-\mu}{\sigma}\\\\\bullet z \text{ is the z-score}\\\bullet x \text{ is the value}\\\bullet \mu \text{ is the mean}\\\bullet \sigma \text{ is the standard deviation}\\\\z=\dfrac{6-8}{3.2}\\\\\\.\ =\dfrac{-2}{3.2}\\\\\\.\ =\large\boxed{-.0625}$