6(5x-3)= need help i’m a idiot

Mathematics

1 answer:

WINSTONCH [101]2 years ago

7 0

Answer: 30x-18 or 3/5 depending on what you are trying to find.

Step-by-step explanation:

If you are just multiplying, then:

6(5x-3)=?

(6x5x)-(3x6)=?

= 30x-18

If you are trying to find x, then:

6(5x-3)=0

(6(5x-3))/6=0/6

5x-3=0

5x=3

x=3/5

Hope this helped ;)

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A wallet containing 5 five dollar bills, 7 ten dollar bills, 8 twenty dollar bills is found and returned to its owner the wallet

Dominik [7]

Answer:

The probability is 2/5 that a $20 bill will be drawn from the wallet.

Step-by-step explanation:

There are 20 total bills in the wallet (5 $5, 7 $10, and 8 $20, 5+7+8=20). So if the finder and returner of the wallet was to be given one of the bills drawn from the wallet there would be an 8/20 chance the owner of the wallet would pull a 20. That's because there are 20 total bills in the wallet and 8 of them are $20.

Simplifying 8/20... 8/20= 4/10= 2/5.

So, there is a 2/5 chance that a $20 bill will be pulled out of the wallet.

Hope this helps!

7 0

3 years ago

The cost of a pair of ice skates went from $200 to $140. What is the percent change in the cost of skates?

dmitriy555 [2]

so the pair went down from 200 to 140, so the difference is 200 - 140 = 60.

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