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Mekhanik [1.2K]
2 years ago
13

Todd has a collection of 8 CDs and Sally has a collection of 18 CDs. Todd is adding 9 CDs a month to his collection while Sally

is adding 7 CDs a month to her collection. When will they have the same number of CDs and how many CDs will they have?
Mathematics
1 answer:
Anuta_ua [19.1K]2 years ago
5 0

todd = 8 + 9

sally = 18 + 7

Just keep adding until they have the same amount if they ever do.

todd 17 26 35 44 53

sally 25 32 39 46 53


so it took them  5 mouths and they both have 53  CD's

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How much cashews at $1.58 per pound must be mixed with walnuts that cost 78 cents per pound to make a mixture of 40 pounds of nu
Likurg_2 [28]

Number of pounds of cashews is 36 pounds and number of pounds of walnuts is 4 pounds.

Step-by-step explanation:

  • Step 1: Given details are cost of cashews = $1.58, cost of walnuts = 78 cents = $0.78, total weight of nuts = 40 pounds, cost of nuts per pound = $1.50
  • Step 2: Let number of pounds of cashews to be mixed be C, then number of pounds of walnuts will 40 - C. Form equation with these variables.

⇒ 1.58 C + (40-C) 0.78 = 40 × 1.50

⇒ 1.58 C + 31.2 - 0.78 C = 60

⇒ 1.58 C - 0.78 C = 60 - 31.2

⇒ 0.8 C = 28.8

⇒ C = 36 pounds

  • Step 3: Calculate number of pounds of walnuts

⇒ Number of pounds of walnuts = 40 - C = 4 pounds

5 0
2 years ago
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Answer:

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3 years ago
One - eighth of 7.92 x 10^10
liraira [26]
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3 0
3 years ago
Help with this question, please!!
Marta_Voda [28]

Answer:

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3 0
3 years ago
How to solve step by step
Oliga [24]
Create an equation. Since all of the angles of any triangle add up to 180 degrees, our equation will be:
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Subtract 75 on both sides to further simplify.
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2 years ago
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