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aleksley [76]
3 years ago
10

On Halloween night, Mack collects x pieces of candy and then eats 7 pieces. The next day he eats 10% of his candy pieces and has

63 pieces remaining. How many pieces of candy did he collect on Halloween night?
Mathematics
1 answer:
IgorLugansk [536]3 years ago
6 0

Answer:80 or 1,071

Step-by-step explanation:

first you add 7+10=17 then you do 17x63=1,071

if its not times then the answer would b 80

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If 3 3/4 lb. of candy cost $20.25, how much would 1 lb. of candy cost.
Jet001 [13]

3 3/4 lb of candy costs $ 20.25

we have been given a mixed fraction with both whole number and fraction

so lets convert it an improper fraction

3 3/4

3 wholes are equivalent to 3*\frac{4}{4} = \frac{12}{4}

then 3 3/4 is - \frac{12}{4} + \frac{3}{4} = \frac{15}{4}

so 15/4 lbs -- $ 20.25

then 1 lb is -- \frac{20.25}{15/4} = \frac{20.25*4}{15} = \frac{81}{15} = 5.4

therefore 1 lb is equal to $ 5.40

4 0
3 years ago
Read 2 more answers
What is the perimeter of the parallelogram
vfiekz [6]

Answer:

34

Step-by-step explanation:

p= l+l+w+w

5+5+12+12=

10+24=

34

5 0
3 years ago
22 out of the 55 teachers in a
wlad13 [49]

Answer:

40%

Step-by-step explanation:

Our fraction would be 22/55. You can divide and then multiply by 100 to get your percentage.

8 0
1 year ago
Solve the equation:<br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7B21%20-%204x%7D%7B9%7D" id="TexFormula1" title="\frac{21 - 4x
schepotkina [342]

Answer:

x = -\frac{12}{5}

Step-by-step explanation:

To solve the equation, isolate x. Whatever you do to isolate x one on side, you must do to the other.  

1) Multiply both sides by 9 to get rid of the fractions.  

\frac{21-4x}{9} +\frac{8x+15}{3} = 2 \\21-4x + 3(8x + 15) =18 \\

2) Distribute the 3 to 8x and 15. Then, combine like terms.

21-4x + 24x + 45 = 18 \\66 + 20x = 18

3) Move the 66 to the other side, subtracting 18 by 66, then divide each side by 20 to finally isolate x.

20x = -48\\x = -\frac{48}{20} \\x =- \frac{12}{5}

Thus, x = -\frac{12}{5}.

3 0
3 years ago
Help with it all, don't understand this
Ganezh [65]
Number 3 it is a factor because if u expand you will see that x+6 will be the answer
5 0
3 years ago
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