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REY [17]
3 years ago
9

Question 18 Write an equation that expresses the following relationship. varies directly with and inversely with In your equatio

n, use as the constant of proportionality.
Mathematics
1 answer:
Svetach [21]3 years ago
4 0

Answer:

d=\frac{kw}{p^2 }

where k is the constant of proportionality.

Step-by-step explanation:

The original question is

d varies directly with w and inversely with the square of p

k is always the constant of proportionality

d varies directly with x so we multiply 'w' in the numerator

for inversely proportional we put the square of  p in the denominator

so the equation becomes

d=\frac{kw}{p^2 }

where k is the constant of proportionality.

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Sally took $13 to the movies. She paid $5 for a movie ticket and popcorn. Which number sentence below will tell how much money s
Alla [95]

Answer:

n = 13 - 5

Step-by-step explanation:

Given,

Amount of money Sally had at first = $13

Amount of money Sally Spent = $5

amount of money left over, n

= Amount of money Sally had at first - Amount of money she spent

= 13 - 5

hence

n = 13 - 5

6 0
3 years ago
What is the y-coordinate of the midpoint of WU?<br> A 2.5<br> B. -1.5<br> C. -0.5<br> D. 1.5
lilavasa [31]

Option C: -0.5 is the right answer

Step-by-step explanation:

Given is the graph on which different points are indicated.

We have to find the y-coordinae of the mid-point of WU.

The formula for mid-point is:

(\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})

So we only have to know the y-coordinates of both points to find the mid-points y coordinate

So by observing the graph we get

y_1 =0

y_2 = -1

So,

\frac{0-1}{2}\\= \frac{-1}{2}\\= -0.5

Hence,

Option C: -0.5 is the right answer

Keywords: Mid-point, coordinate geometry

Learn more about coordinate geometry at:

  • brainly.com/question/5193660
  • brainly.com/question/5014739

#LearnwithBrainly

6 0
3 years ago
In a talent show of singing and comedy acts, singing acts are 5 min long and comedy acts are 3 min long. The show has 12 acts an
sineoko [7]

Answer:

c=5


Step-by-step explanation:

5s + 3c = 50

s+c=12

5(12-c) + 3c=50

60-5c+3c=50

60-2c=50

-2c=-10

c=5

4 0
3 years ago
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It’s a
Step by step to cool to be true
7 0
3 years ago
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Anika [276]
93 inches - 7 times 12 (inches in a foot)is 84 plus 9 is 93 inches.
6 0
3 years ago
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