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astraxan [27]
1 year ago
15

The amount of money spent buying packets of instant noodles varies directly

Mathematics
1 answer:
8090 [49]1 year ago
6 0

The cost of 45 packets of instant noodles given the direct variation is $52.335

<h3>Direct variation</h3>

let

  • Amount spent on noodles = n
  • Number of Packets purchased = p

n = k × p

  • Where,

k = constant of proportionality

34.88 = k × 30

34.88 = 30k

k = 34.88/30

k = 1.16266666666666

Approximately,

k = 1.163

Find n when p = 45

n = k × p

= 1.163 × 45

n = $52.335

Learn more about variation:

brainly.com/question/6499629

#SPJ1

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christy uses glass beads to make braclets and necklances it takes her 30 minutes to make a bracelet and 45 minites to make a nec
shtirl [24]

Christy should make at least 30 bracelets and at most 40 necklaces to maximize profit

<h3>How to determine how many bead of each type of bracelets and necklaces should Christy make to maximize his​ profit?</h3>

The given parameters can be represented in the following tabular form:

                       Bracelet (x)    Necklace (y)    Total              

Labor (hour)        0.5                       0.75         40

Profit                    10                         18

From the above table, we have the following:

Objective function:

Max P = 10x + 18y

Subject to:

0.5x + 0.75y <= 40

Because she wants to make at least 30 bracelets, we have:

x >= 30

So, we have:

Max P = 10x + 18y

Subject to:

0.5x + 0.75y <= 40

x >= 30

Express x >= 30 as equation

x = 30

Substitute x = 30 in 0.5x + 0.75y <= 40

0.5 * 30 + 0.75y <= 40

This gives

15 + 0.75y <= 40

Subtract 15 from both sides

0.75y <= 30

Divide by 0.75

y <= 40

Hence, Christy should make at least 30 bracelets and at most 40 necklaces to maximize profit

Read more about maximizing profits at:

brainly.com/question/13799721

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4 0
1 year ago
Pls help I’m failing math I’ll brainlest ASAP
skad [1K]

The equation <u>6 + 9a = 51</u> can help find out how many adults were in the group.

5 0
3 years ago
Zack has an old car. He wants to sell it for 60% off the current price. The
Lelechka [254]

Answer:

300 dollars

Step-by-step explanation:

60% of 500

(60/100) * 500 = 300

4 0
2 years ago
Need the answer plzz
Dmitrij [34]

Answer:

20 \times 11.5 + 20 \times 11.75 + 20 \times 11.5 + 20 \times 11.75 + 2 \times (11.75 \times 11.5) \\  = 1200.25 {in}^{2}

8 0
3 years ago
Carly is pouring sand into a rectangular container with dimensions of 4 1/2 inches by 3 1/2 inches by 2 inches. What is the maxi
Pachacha [2.7K]
The answer is 31.5 in.^3 because
4.5 • 3.5 • 2 = 31.5in.^3
8 0
2 years ago
Read 2 more answers
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