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joja [24]
3 years ago
12

How do you solve 4y^-3-x^2y^-1?

Mathematics
1 answer:
Lerok [7]3 years ago
8 0
4y^-3 - x^2y^-1 = 2y^-1(2y^-2 - x^2)
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Jan took her brother out to dinner. The cost of Jan’s dinner was $18.50. The cost of her brother’s dinner was $19.00. If they wa
Vikki [24]

The total bill that would be paid by Jan is equal to $43.125.

<u>Given the following data:</u>

  • Cost of Jan’s dinner = $18.50.
  • Cost of brother’s dinner = $19.00.
  • Tip = 15%

To determine the total bill that would be paid by Jan:

First of all, we would calculate the total cost of their dinner as follows:

Total\;cost = 18.50 + 19.00

Total cost = $37.50

Next, we would calculate the tip cost for the total cost of their dinner:

Tip\;cost = \frac{15}{100} \times 37.5\\\\Tip\;cost =0.15\times 37.5

Tip cost = $5.625

<u>For the </u><u>total bill</u><u>:</u>

Total\;bill = Total\;cost + Tip\;cost\\\\Total\;bill = 37.5 + 5.625

Total bill = $43.125.

Read more: brainly.com/question/11285399

8 0
2 years ago
these 15 colored pencils make up 20% of jordon's colored pencil collection.how many colored pencils does jordon have in his coll
dmitriy555 [2]

Answer:

75 coloured pencils

Step-by-step explanation:

Let's say Jordon has x total pencils.

We know that 20% of these x pencils is 15, so we have:

20% * x = 15

Remember that % is just "out of 100", so 20% = 20/100 = 0.20. Then:

0.20x = 15

x = 15 / 0.20 = 75

Jordon has 75 coloured pencils.

6 0
3 years ago
Read 2 more answers
Oak pollen sent 21,000 people to U.S. emergency rooms for asthma in 2010. By 2090 the rate could climb another 5 or 10 percent.
Gnesinka [82]

The probable number of prople sent to US emergency rooms by 2090 can be between 22,050 and 23,100

Step-by-step explanation:

Total sent to US emergency room by 2010= 21000

The estimated increase in the rise of cases = 5 to 10% by 2090

Final numbers in 2090

Hence the final numbers in 2090 would be 5 to 10% more than the total cases in 2010

Lower limit= 5% of 21000= 1050

Hence lower limit of cases in 2090= 21000+1050= 22050

Upper limit of cases in 2090= 10% of 21000= 21000+2100= 23,100

The number would lie anywhere between 22050 and 23,100 in 2090

5 0
3 years ago
Mary is x years old. How old will she be in 12 years? How old was she 2 years ago?
Anna007 [38]
In 12 years she will be X+12

2 years ago she was X-2
5 0
3 years ago
9/3y-12=1/4y-4 solve for y
Mama L [17]
The answer would be y=32/11
3 0
3 years ago
Read 2 more answers
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