Ms-Brains
  • Ms-Brains
Please help me by checking my work! I will medal and fan!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Ms-Brains
  • Ms-Brains
1. I think it's B.. @Nay_Af
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pooja195
  • pooja195
I'm sorry but we're not allowed to help on tests/quizzes/exams/assignments here :/ that would be considered cheating :(
Ms-Brains
  • Ms-Brains
Um.. it's not a test, it's like practice problems for studying.. I want to know if I worked the problems out properly and get them correct. @pooja195

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pooja195
  • pooja195
Its labeled quiz questions.
jigglypuff314
  • jigglypuff314
at most 130 means that it can include that number (I think)
Nay_Af
  • Nay_Af
Option C seems correct (less than or equal to 130)
Ms-Brains
  • Ms-Brains
I know! I just have it labeled that. Gosh, I'm sorry. I thought open study was for helping, and understanding. It's not like I'm telling people to give me answers. damn chiil @pooja195
pooja195
  • pooja195
You would have your answer if you knew what "at most" meant since theres only one option that matches that :) And im sorry for being rude. I thought it was a quiz question since it was labeled that way.
jigglypuff314
  • jigglypuff314
@Nay_Af would you mind also explaining how you got that answer so that Ms-Brains can understand for future similar questions?
Ms-Brains
  • Ms-Brains
You guys are just crowding up my question. @pooja195 and @jigglypuff314 That wasn't cool. Thanks for trying to help @Nay_Af
jigglypuff314
  • jigglypuff314
I'm not cool? ;-; how come? I was pointing out "at most 130 means that it can include that number" for you
Nay_Af
  • Nay_Af
Perimeter = Sum of the sides. Length = 4 times Width L = 4 W Perimeter = L + W + L + W P = 2W + 2 L P = 2W + 2 (4W) Since, it is said that the perimeter is at most 130, that means that its maximum value can be 130, and that it can be less than 130 as well. That's why, option C is the correct option that gives equal to or less than 130.
Ms-Brains
  • Ms-Brains
I'm sorry, I've just been trying to figure this out since last night, and it's making me frustrated. I'm sure you're a pretty cool person. :) I didn't mean to include you in that. @jigglypuff314
jigglypuff314
  • jigglypuff314
much better @Nay_Af ! well done :)
Ms-Brains
  • Ms-Brains
Can you help with this one? I think it is C, or A I'm a little lost..
Ms-Brains
  • Ms-Brains
@Nay_Af
Nay_Af
  • Nay_Af
Sure. Give me a minute.
Nay_Af
  • Nay_Af
Length = 3 times Width L = 3W Perimeter is maximum 112 cm. P = Sum of the sides. P = L + W + L + W P = 2W + 2L Using L = 3W, it becomes, P = 2W + 2(3W) P = 2W + 6W P = 8W As it is already given that maximum perimeter is 112 cm. So, P = 8W = 112 cm 8W = 112 W = 112/8 W = 14 cm (that should be the maximum value of width)
Ms-Brains
  • Ms-Brains
Oh! Okay, I understand. I get where I went wrong. I think this next one is C?
Ms-Brains
  • Ms-Brains
@Nay_Af Can you confirm?
Nay_Af
  • Nay_Af
Sure. Please wait again till I solve it on paper.
Nay_Af
  • Nay_Af
Reiko started a business. Her expenditures: - $6500 to obtain merhandise - $550 per week for other expenses. It means, for 2 weeks, it will be $550 (2). For 3 weeks, it will be $550 (3) and so on. So, take it as $550 W where W = number of weeks. So, total expenditure= $6500 + $550W Now, see her earnings: She earns $900 per week. So, for W number of weeks, her earning should be $900W Question asks for the minumum number of weeks to make a profit. Remember: To make profit, earnings should be greater than expenditures. So, earnings > expenditures $900W > $6500 + $550W
Ms-Brains
  • Ms-Brains
It's B?
Nay_Af
  • Nay_Af
Yes, it's B according to my calculations.
Ms-Brains
  • Ms-Brains
Okay last one I need help on. :) @Nay_Af I'm thinking C again
Nay_Af
  • Nay_Af
Sure. Wait a while.
Ms-Brains
  • Ms-Brains
Okay.
Nay_Af
  • Nay_Af
Josephine started a business. Her expenditures: - $4500 to obtain merchandise - $200 per week for other expenses. For 2 weeks, it will be $200 (2). For 3 weeks, it will be $200 (3) and so on. So, take it as $200W where W = number of weeks. So, total expenditure= $4500 + $200W Now, see her earnings: She earns $550 per week. So, for W number of weeks, her earning should be $550W Question asks for the minimum number of weeks to make a profit. Again: to make profit, earnings should be greater than expenditures. So, earnings > expenditures 550W > 4500 + 200W 550W - 200W > 4500 350W > 4500 W > 4500/350 W > 12.85 So, more than 12.85 weeks are required. Given options are: 14, 12, 13, 15. 12 is wrong. So, drop this option. Since, question asked for minimum number of weeks, we will choose the minimum number from the remaining options. So, 13 seems the correct answer.
Ms-Brains
  • Ms-Brains
Yay! I' at least got one correct. cx Thanks for the help!
Nay_Af
  • Nay_Af
Awesome :) You're welcome and best of luck.
Ms-Brains
  • Ms-Brains
You got most of them correct! now I'm ready to begin the quiz! This one was incorrect though...
Ms-Brains
  • Ms-Brains
I thought' i'd let you know. cx Bye thanks!
Nay_Af
  • Nay_Af
Let Sue's age = x Jenny's age = y y = 2x + 8 Also, x + y < 32 So, x + 2x + 8 < 32 3x + 8 < 32 3x < 24 x< 8 Since Sue's age is coming less than 8 after solving the inequality. The answer should be 7.

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