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Papessa [141]
3 years ago
14

3(x−7)+20=12+2(x−3). Pls help quickly

Mathematics
1 answer:
scZoUnD [109]3 years ago
3 0

Step-by-step explanation:

3x-21+20=12+2x-6

3x-1= 6+2x

3x-2x=6+1

x=7

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1/5z -5/6 = -4/5z -1/3
sveta [45]

Answer:

z = 15/30 = 3/6

Step-by-step explanation:

1/5z - 5/6 = - 4/5z - 1/3

1/5z + 4/5z = - 1/3 + 5/6

5/5z = - 2/6 + 5/6

5/5z = 3/6

z = 3/6 / 5/5

z = 3/6 * 5/5

z = 15/30

6 0
3 years ago
ASAP<br> -WILL MARK BRIANIST
Debora [2.8K]

Answer:

The answer is 699...............

8 0
3 years ago
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I’ve done this 3 different way and I’m still getting it wrong someone help I feel dumb
Olegator [25]
<h3>Answer: 13,011.11 dollars</h3>

note: remember to take the comma out or ignore it. I put it in there to help make the number more readable

===========================================

Explanation:

Let x be the value of the sale in dollars.

x-1900 represents the leftover amount that is over 1900

eg: if x = 2200, then x-1900 = 2200-1900 = 300 is the the leftover amount

taking 9% of (x-1900) leads to the expression 0.09(x-1900) and this expression must be 1000 since this is the extra amount of money the salesman needs (he already has $1000 in base pay)

-------------

Solve for x

0.09(x-1900) = 1000

x-1900 = 1000/0.09

x-1900 = 11,111.11111 approximately

x = 11,111.11111 + 1900

x = 13011.1111

x = 13,011.11 rounding to the nearest cent

4 0
3 years ago
Bridget has a bag of skittles that is 3/4 full. If she eats 2/5 of the remaining skittles, how much of the bag did she eat?
Nutka1998 [239]

Bridget eats \frac{x}{10} of the Skittles

<u>Explanation:</u>

Let the number of skittles = x

If the bag has \frac{3}{4}x of the skittles

Then the skittles remaining = x - \frac{3}{4}x

                                              =  \frac{x}{4}

Amount that Bridget eats = \frac{2}{5} X \frac{x}{4}

                                          = \frac{x}{10}

Therefore, Bridget eats \frac{x}{10} of the Skittles

3 0
3 years ago
Show that if there were a coin worth 17 cents, the following greedy algorithm that uses quarters, 17-cent coins, dimes, nickels,
Ainat [17]
12 cents, the greedy algorithm using quarters, 12-cent coins, dimes, nickels, and pennies would not always produce change using the fewest coins
4 0
3 years ago
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