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Crazy boy [7]
3 years ago
9

5x - 2y = -15 and 3x + 8y = 37 elimination please

Mathematics
1 answer:
Rainbow [258]3 years ago
8 0

Answer:

the answer is d i took the quiz

Step-by-step explanation:

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John is interested in purchasing a multi-office building containing five offices. The current owner provides the following proba
Elenna [48]

Answer:

Option B.

Step-by-step explanation:

The given table is:

Number of Lease Offices :  0           1         2       3        4         5

Probability                         : 5/18     1/4     1/9    1/18     2/9      1/12

The expected probability is

Expected probability = \sum_{i=0}^5 x_{i}p(x_i)

Expected probability = 0p(0)+1P(1)+2P(2)+3P(3)+4P(4)+5P(5)

Expected probability = 0\cdot (\frac{5}{18})+1\cdot (\frac{1}{4})+2\cdot (\frac{1}{9})+3\cdot (\frac{1}{18})+4\cdot (\frac{2}{9})+5\cdot (\frac{1}{12})=\frac{35}{18}

It is given that the yearly lease = $12,000.

The yearly leases for the whole building in a given year is

Yearly leases = \frac{35}{18}\times 12000=23333.3333333\approx 23333.33

Therefore, the correct option is B.

3 0
4 years ago
The force of gravity on Earth is 6 times greater than on the moon. As a result, objects weigh 6 times as much on Earth as they d
DochEvi [55]

Answer: The instrument weigh 204 ounces on Earth.

Step-by-step explanation:

Since we have given that

Instrument weighed on the moon = 34 pounds

As we know that

The force of gravity on Earth is 6 times greater than on the moon.

So, the weight of instrument on the earth is 6 times the weight on the moon.

Mathematically, it is expressed as

6\times 34\\\\=204\ ounces

Hence, the instrument weigh 204 ounces on Earth.

6 0
4 years ago
I need help plss help
Rashid [163]

Answer:

C

Step-by-step explanation:

4/5 = 8/10

1/2 = 5/10

+______

        13/10 = 1 3/10

4 0
3 years ago
Read 2 more answers
a furniture shop refinshes cabinets. employees use one of two methods to refinish each cabinet. method 1 takes 1 hour and the ma
Margaret [11]

Answer:

70 cabinets in method 1 and 24 cabinets in method 2.

Step-by-step explanation:

Let in method 1 they refinish x cabinets and in method 2 they refinish y cabinets.

Now, given that method 1 and method 2 takes 1 hour and 1.5 hours respectively and the material costs for method 1 and method 2 are $6 and $4 respectively.

If they plan to spend 106 hours in labour and $516 in material for refinishing cabinets, then

x + 1.5y = 106 ...... (1) and  

6x + 4y = 516 ....... (2)

Now, solving equations (1) and (2), we get  

6 (106 - 1.5y) + 4y = 516

⇒ 5y = 636 - 516

⇒ y = 24 cabinets

From equation (1) x = 106 - 1.5y = 106 - 36 = 70 cabinets. (Answer)

3 0
3 years ago
(x2+x)(x2-2x-3) is equal to?
PtichkaEL [24]

Answer:

x^4-x^3-5x^2-3x

Step-by-step explanation

Use the FOIL Method or factor.

3 0
3 years ago
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