2 years ago

32 3/4−12 1/2=

1 answer:

7 0

Ans: 20.25

can convert the mixed numbers fractions to improper fractions before making the denominators the same and coming up with the answer in decimals

hope this helps:))

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You plan to charge $1 for each time a student plays, and the payout for a win is $5. According to your calculations, the probabi

galben [10]

Answer:

- $0.75

Step-by-step explanation:

For each game played the chance of winning is 0.05 and losing is 0.95.

If the student wins, they get $5 -$1 = $4, but they lose $1.

<u>Expected value is:</u>

4*0.05 - 1*0.95 = -0.75

It means you will make $0.75 per average game.

3 0

2 years ago

Read 2 more answers

Solve the equation using the zero-product property. (2x − 8)(7x + 5) = 0 x = –2 or x = 7 x = 4 or x = x = 4 or x = x = –4 or x =

aliya0001 [1]

$(2x-8)(7x+5)=0\iff2x-8=0\ \vee\ 7x+5=0\\\\2x-8=0\qquad\text{add 8 to both sides}\\2x=8\qquad\text{divide both sides by 2}\\\boxed{x=4}\\\\7x+5=0\qquad\text{subtract 5 from both sides}\\7x=-5\qquad\text{divide both sides by 7}\\\boxed{x=-\dfrac{5}{7}}$