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kotykmax [81]
3 years ago
7

Suppose that y varies inversely with x. Write a function that models the inverse function x=7 when y=3

Mathematics
1 answer:
anygoal [31]3 years ago
7 0

9514 1404 393

Answer:

  y = 21/x

Step-by-step explanation:

The inverse variation relation means ...

  y = k/x

For the given values, we can determine the constant k:

  3 = k/7

  3×7 = k = 21

Then the function is ...

  y = 21/x

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5. The Jones family orders four pizzas to eat. Each pizza is sliced into four parts. How many pizza slices do they get in total?
morpeh [17]

Answer:

16 slices

Step-by-step explanation:

Given :

Number of pizzas ordered = 4

Number of slices per pizza = 4

If 4 pizzas are each sliced into 4 parts ; the we have :

Pizza 1 = 4 slices

Pizza 2 = 4 slices

Pizza 3 = 4 slices

Pizza 4 = 4 slices

Total slices = (4 +4 +4 +4) = 16 slices

7 0
3 years ago
3w - 10w<br> A. 13w<br> B. -7w<br> C. -7<br> D. 7w
velikii [3]

Answer:

-7w

Step-by-step explanation:

4 0
4 years ago
Is -2.75 greater than -2.5 please explain your answer
Anuta_ua [19.1K]
No its not because in negative numbers -2.75 is less because you're trying to get back to zero so no its not
6 0
4 years ago
Need help with this please​
Alexandra [31]

Answer:

the answer is D.

Step-by-step explanation:

  1. First get x on one side by adding 10x on both sides. that leaves you with 18x
  2. subtract 20 on both sides. that leaves you with 36
  3. divide 36 by 18.

I hope i helped

Brainliest Is Appreciated.

4 0
3 years ago
Read 2 more answers
35% of the 20 children in a class are boys how many boys are in the class plz with explanation
topjm [15]
There are 7 boys and 13 girls in the class


work :
\frac{20}{100}  =  \frac{x}{35}  \\  x =  \frac{35 \times 20}{100}  =  \frac{700}{100}  = 7
the number of boys is 7


20 - 7 = 13
the number of girls is 13




good luck
6 0
4 years ago
Read 2 more answers
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