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masha68 [24]
3 years ago
11

X is inversely proportional to y, and x = 18 when y = 4. Write an equation relating the two

Mathematics
1 answer:
Alenkasestr [34]3 years ago
8 0

Answer:

xy=72

Step-by-step explanation:

If x is inversely porportionaly to y, then for some constant k,

x = \frac{k}{y}\\xy=k

Since y is 4 when x = 18, k is equal to 4*18=72, so the equation is:

xy=72

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The length of an alligator on a zoo is 14 5/8 feet the everglades national park lists the longest alligator in Florida at 17 5/1
bekas [8.4K]

Answer:

2 19/24 feet

Step-by-step explanation:

14 5/8 = 14 15/24

17 5/12 = 17 10/24 ==> 16 34/24

16 - 14 = 2

34/24 - 15/24 = 19/24

Answer = 2 19/24 feet

Hope this helps!

-The Business Man

8 0
3 years ago
There are 16 females and 20 males in a class.
ozzi
20/36, or 5/9 if simplified.
5 0
3 years ago
Read 2 more answers
Help me please, will give brainliest
ANTONII [103]

A\left[\begin{array}{ccc}1&0&5\\0&-5&7\\0&3&-4\end{array}\right]

B\left[\begin{array}{ccc}3&-5&3\\2&3&1\\4&1&-3\end{array}\right]

Now,\\\\2B-A\\\\2\left[\begin{array}{ccc}3&-5&3\\2&3&1\\4&1&-3\end{array}\right]-\left[\begin{array}{ccc}1&0&5\\0&-5&7\\0&3&-4\end{array}\right]\\\\=\left[\begin{array}{ccc}6&-10&6\\4&6&2\\8&2&-6\end{array}\right] -\left[\begin{array}{ccc}1&0&5\\0&-5&7\\0&3&-4\end{array}\right]\\\\=\left[\begin{array}{ccc}5&-10&1\\4&11&-5\\8&-1&-2\end{array}\right]

Row 1 column 2(a12)=-10

Hence,-10 is your answer.

6 0
2 years ago
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NemiM [27]

Well, we know that it costs $60 plus 5 per month for Alpha Fitness Club.

We also know that it costs $20 plus 10 per month for Omega Fitness Club.

In order to find out which one would cost the most, we must add the additional costs to the original join cost.

(NEVER add the join cost, just do the join cost at the beginning or else the clubs will never become the same cost.)

Club      M1  M2  M3  M4  M5  M6  M7  M8  M9

Alpha:   60   65  70   75   80   85   90  95  100

Omega:20   30  40   50   60   70   80  90  100

If you look above, you realize that there is a time when they both cost the same.

Summary sentence:

After 9 months, the cost to belong to either fitness club would be $100.

4 0
3 years ago
Can y’all help me with this plz
N76 [4]
The first one is cost of jam $4, cost of soup $7
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3 years ago
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