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Anvisha [2.4K]
2 years ago
15

a store is having a sale on walnuts and chocolate chips. for 3 pounds of walnuts and 5 pounds of chocolate chips, the total cost

is $20. for 6 pounds of walnuts and 2 pounds of chocolate chips, the total cost is $14. find the cost for each pound of walnuts and each pound of chocolate chips.
Mathematics
1 answer:
Step2247 [10]2 years ago
7 0

Answer:

  • Walnuts - $1.25, chocolate chips - $3.25

Step-by-step explanation:

Let walnuts = x, chocolate chips = y

<u>Set a system and solve:</u>

  • 3x + 5y = 20
  • 6x + 2y = 14

<u>Double the first equation and subtract the second one from it:</u>

  • 6x + 10y - 6x - 2y = 40 - 14
  • 8y = 26
  • y = 26/8
  • y = 3.25

<u>Find the value of x:</u>

  • 6x + 3.25*2 = 14
  • 6x = 14 - 6.5
  • 6x = 7.5
  • x = 7.5/6
  • x = 1.25
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Answer:

32

Step-by-step explanation:

f(x)= 3(x-2)² + 5

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Parentheses first

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Exponents

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2 years ago
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How many different four-digit numbers can be made using the digits 1,2,3,4,5,6 if no digit can be used more than once?
igomit [66]

Answer:

360

Step-by-step explanation:

The given digits are 1,2,3,4,5,6.

So, total number of digits = 6.

We need to find the number of different ways to form four-digit numbers using the digits, without repetition.

Total ways for first place = 6

After selecting 1 digit the number of remaining digits is 5. So,

Total ways for second place = 5

Similarly,

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2 years ago
Dale says the ratios 3:5 and 2:10 are equivalent. Is He correct? Explain
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Answer:

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Step-by-step explanation:

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LCM of 5 and 10 is 10

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For the 1st fraction, since 5 × 2 = 10,

\frac{3}{5} =\frac{3*2}{5*2} =\frac{6}{10}

Likewise, for the 2nd fraction, since 10 × 1 = 10,

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Hence, 3:5 is <u>Greater than </u>2:10

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2 years ago
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3 years ago
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Answer:

23) 0

24) Option A

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