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Ad libitum [116K]
3 years ago
15

Lisa is seven times as old as her brother. She will be four times as old as her brother in three years. Represent the above situ

ation in mathematical form.
1)7x/3 = 4(x - 3)
2)7x – 3 = 4(x - 3)
3)7x + 3 = 4(x + 3)
4)None of the choices
Mathematics
1 answer:
dlinn [17]3 years ago
3 0

Answer:

3

Step-by-step explanation:

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Multiply: 10x(x – 17)
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10x^2-170x is the answer I think you're looking for
6 0
3 years ago
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1. Manufacturing Process Incorporation plan to produce a new ergonomic chair. Before the company starts producing this chair the
Oduvanchick [21]

Answer:

1. cost per chair: $86.40

2. selling price per chair: $146.88

Step-by-step explanation:

1. The total cost per chair will be the sum of the cost of materials and the overhead cost (equipment, energy, labor, marketing). The cost of materials is ...

$500/(16 chairs) = $31.25/chair

So, the total cost is ...

cost of each chair = material cost + overhead cost

= $31.25 +55.15

cost of each chair = $86.40

__

2. We assume the markup is 70% of the cost, so will be ...

0.70 · $86.40 = $60.48

Then the selling price of the chair will be ...

selling price = cost + markup

selling price = $86.40 +60.48

selling price = $146.88

3 0
3 years ago
A study found that a factory produces 6 defective computers for every 500 computers that are produced. On the average, what perc
masya89 [10]

Answer:

1.2%

Step-by-step explanation:

We know that for every 500 computers, 6 are defective. So, to know what percentage of computers are defective on average, we can do a rule of three:

500 computers -> 6 defective

100 computers -> X defective

500/100 = 6/X

X = 100 * 6 / 500 = 1.2

So, in average, for every 100 computers, 1.2 are defective, so the percentage is 1.2% (1.2 for every 100)

6 0
3 years ago
Mr. Moran chose 10 different test scores out of 50, and they are shown below. For the following set of data, find the mean test
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Answer:

39.5

Step-by-step explanation:

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3 years ago
Help me its due today
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Answer:

$65.35

Step-by-step explanation:

  1. First you have to divide 5.4% by 100
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  3. Take the number you get from step 2 and add it to 62! (:
4 0
3 years ago
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