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3 years ago

What is 5/2y +17= -2/3y -21

2 answers:

7 0

I know but some body all ready gave to u
ummm
52y+17=−23y−21
y=-12

miss Akunina [59]3 years ago

4 0

19/6y+17=-21
19/6y=-38
y=-12

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How many permutations can be made with the letters in the word Metallica

pentagon [3]

<h3>Answer: 90720 </h3>

===============================================

Explanation:

There are 9 letters in "Metallica", so there would be 9! = 9*8*7*6*5*4*3*2*1 = 362880 different permutations; however, this is only the case if we could tell the letters L and A apart.

We have two copies of each of those repeated letters, so we have to divide by 2!*2! = (2*1)*(2*1) = 4 to account for these repeats.

Because we can't tell the repeated letters apart, we really have (9!)/(2!*2!) = (362880)/(4) = 90720 different permutations.

5 0

3 years ago

(a-1) a2-b2/1-ab+2(a-b)/2b a=2, b=-1

denis-greek [22]

I hope this helps you

6 0

3 years ago

Read 2 more answers

an aquarium has a ratio of 5 rays for every 3 sharks. What percent of this grouping of animals are rays

sashaice [31]

Answer:

62.5%

Step-by-step explanation:

Total number of animals in a group= 5+3=8 animals

Number of rays=5

Since we only have 5 rays out of the total 8, to express the number of rays as a percentage of the total animals, we divide the number of rays by the total animals then multiply by 100 to express in percentage as needed in the question

Percentage of rays= $\frac {5}{8}\times 100=62.5$

Therefore, the percentage is 62.5%

6 0

3 years ago

Please help ASAP! Only answer if you know the correct answer! Thanks :)

ruslelena [56]

Answer:

29 Minutes

Step-by-step explanation:

The original speed is given in miles per hour (like a car), but the answer is asking for miles per minute, so we must convert the speed into miles per minute first. To do this, we set up this equation: $\frac{10.1 miles\ }{1 hour}x\frac{1}{60minutes}$ which equals $\frac{0.168333333miles}{minute}$ . We can then divide the desired number of miles by the speed in miles per minute. Here is the eqaution for this $\frac{4.9miles}{\frac{0.168333333miles}{1minute} }$ . The miles cancel and you are just left with 29.1 minutes after you divide 4.9 by 0.168333333. Hope this helps!

7 0

2 years ago

A system of equations has 1 solution. If 4x - y = 5 is one of the equations, which could be the other equation?

Lera25 [3.4K]

4x - y = 5 is an verb like 4 - 5

4 0

3 years ago