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77julia77 [94]
3 years ago
15

Given that p varies jointly as q and r, and p = 7. when q = 2

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
4 0

Answer:

P = k*q*r

Step-by-step explanation:

P = kqr

7 = k*2*1.5

7 = 3k

k = 7/3

b. P = kqr

= 7/3*4*6

= (7*4*6)/3

= 168/3

= 56

P = 56

c. P = kqr

1 = 7/3*q*3

1 = (7*q*3)/3

1 = 21q/3

Cross product

1*3 = 21q

3 = 21q

q = 3/21

= 1/7

q = 1/7

d. P = kqr

5 = 7/3*8*r

5 = (7*8*r)/3

5*3 = 56r

15 = 56r

r = 15/56

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Answer:

28 ft²

Step-by-step explanation:

The area of a circle is \pi r^2, where r = radius. To find the radius, we split the diameter in half.

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Now, let's find the area of the circle and approximate pi to 3.14.

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7 0
2 years ago
The difference of 28 and a number m is 3
jonny [76]

Answer:

28 - m = 3

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3 years ago
7x+18−6(x+1)−12 Please answer this you get 10 points!!!!
ra1l [238]

Answer:

x

Step-by-step explanation:

7x+18−6(x+1)−12

start out with distributive property

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7 0
3 years ago
Find the equation of the line. Use exact numbers <br> y= ?x+ ?
lina2011 [118]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
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Brut [27]

Answer:

Step-by-step explanation:

-5           -160

----      =  ------

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I hope it helps :)

3 0
3 years ago
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