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frez [133]
3 years ago
12

Jonathan's parents told him that for every 5 hours of homework is done and complete he will be able to 3 hours of video game his

friends Lucas parents told their son he could play 30 minutes for every hour of homework he complete you've both been the same amount on time on homework and reading this week which one has more time playing video games how do you know
Mathematics
2 answers:
likoan [24]3 years ago
4 0
Jonathan. you look at the ratios. 5 hours of homework to 3 hours of Video games =5:3. And for Lucas its 1:30. Say that they both did 5 hours. Jonathan has 3 HOURS of play time and Lucas only gets 30 Minutes. in minutes, Jonathan would have 540 minutes, and Lucas would still only have 30. Again, the answer is jonathan
RoseWind [281]3 years ago
3 0
Jonathan because if they both do five hours of homework Jonathan will have 3 hours of gaming while Lucas will have an hour and 50 minuets
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The reason is that the $50 is not changing, nor would the number of weeks, x be changing.
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2144.66 would be the correct answer

Step-by-step explanation:


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Solve for x.<br> 7(1x - 3) = 4(x + 5)
alexandr1967 [171]

Answer:

x = 41/3

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

7(1x - 3) = 4(x + 5)

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Simplify:                                        7(x - 3) = 4(x + 5)
  2. Distribute:                                     7x - 21 = 4x + 20
  3. Subtract 4x on both sides:          3x - 21 = 20
  4. Add 21 on both sides:                  3x = 41
  5. Divide 3 on both sides:                x = 41/3

<u>Step 3: Check</u>

<em>Plug in x to verify it's a solution.</em>

  1. Substitute:                    7(1(41/3) - 3) = 4(41/3 + 5)
  2. Multiply:                        7(41/3 - 3) = 4(41/3 + 5)
  3. Subtract/Add:               7(32/3) = 4(56/3)
  4. Multiply:                        224/3 = 224/3

Here, we see that 224/3 is indeed equivalent to 224/3. ∴ x = 41/3 is a solution to the equation.

And we have our final answer!

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144 ounces! There are 8 ounces in 1 cup. 8x18= 144!! :D
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