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nignag [31]
3 years ago
5

Ejay bought a pack of peanut bars from the neighborhood store. He ate 3 of the cont of the contents immediately. He gave 20 piec

es to his sister Aileen. Then he ate emaining bars. of the remaining ba If he has 25 peanut bars left later, how many bars did the pack originally contain?
Mathematics
1 answer:
Alinara [238K]3 years ago
8 0

Answer:

105

Step-by-step explanation:

Complete Question:

<em>"Ejay bought a pack of peanut bars from the neighborhood store. He ate 1/3 of the context immediately. He gave 20 pieces to his sister Aileen. Then he ate 1/2 of the remaining bars. If he has 25 peanut bars left after, how many bars did the pack originally contain?"</em>

<em />

Let original amount be x

He ate 1/3 immediately so remaining

x - 1/3x

He gave 20 to Aileen, remaining:

(x - 1/3x) - 20

He ate half of remaining, remaining now:

(x - 1/3x) - 20 - 1/2((x - 1/3x) - 20)

Now, he has 25 left. So the previous equation is equal to 25. Then we solve for x:

(x - \frac{1}{3}x) - 20 - \frac{1}{2}[(x - \frac{1}{3}x) - 20)]=25\\\frac{2}{3}x-20-\frac{1}{2}[\frac{2}{3}x-20]=25\\\frac{2}{3}x-20-\frac{1}{3}x+10=25\\\frac{1}{3}x=35\\x=\frac{35}{\frac{1}{3}}\\x=105

The pack originally had 105 bars

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then 0 =4x^2 -12x + 9
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Please help. I’ll mark you as brainliest if correct!
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Answer:

x +0y+0z = 400

-x +y+0z = 150

-8x +0y +z = 250

Step-by-step explanation:

The last column is the solution

The rest of the columns are the coefficients of the variables

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Step-by-step explanation:

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2 years ago
Solve each problem and check your answer using estimates. a. $18.79 + $2.11 + ‐$1.92 + $17.28 b. $7.45 + ‐$24.45 + $74.17 + ‐$76
Aneli [31]

The solution to the linear expressions are:

  • a. $36.26
  • b. -$19.35
  • c. $70.38

<h3>Solving linear expressions:</h3>

The solution to linear expression is determined by taking into consideration the arithmetic operations used in each linear expression.

From the information given:

a. $18.79 + $2.11 + ‐$1.92 + $17.28

By rearrangement:

= $18.79 + $2.11 + $17.28 ‐$1.92

= $36.26

b. $7.45 + ‐$24.45 + $74.17 + ‐$76.52

By rearrangement:

= $7.45  + $74.17 ‐ $24.45 ‐ $76.52

= -$19.35

c.  $98.45 − $10.63 + $2.82 − $20.26

By rearrangement:

= $98.45 + $2.82 − $10.63 − $20.26

= $70.38

Learn more about solving linear expressions here:

brainly.com/question/2030026

#SPJ1

7 0
1 year ago
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