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Nookie1986 [14]
3 years ago
14

Suppose y varies directly with x. Write a direct variation equation that relates x and y when y = 12 and x = 24.

Mathematics
1 answer:
AfilCa [17]3 years ago
4 0

Answer:

20

Step-by-step explanation:

x = 20.

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-1/y = 2/5y. The change from -1 to 2 would be -2, so we now that the change from y to 5y would also have to be -2. -2 = -10 so you multiply by 5. After doing the same to the top you would come to the conclusion that the LCD would be 5y.  Hope this helps!
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Simplify 3 2x. What is the coefficient?
torisob [31]
What is the missing sign between 3 and 2? I assume that it's multiplication sign, or *

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3 years ago
Calculate the potential difference across a 40 ohm resistor when a current of 5A flows through it​
MrRissso [65]

Answer:

I don't know if this is what your looking for but if you had 40 ohms and 5 amps, you would get 200 volts / and 1000 watts.

Hope that helps :)

Step-by-step explanation:

4 0
3 years ago
4w2 + 3W
timama [110]

Question:

A homeowner is building a flower bed in the backyard. He plans to put a layer of fertilizer over the entire flower bed.

Length = 4w^2 + 3w - 1

Width = 5w - 2.

Which expression represents the area in square feet that the homeowner will cover with fertilizer?

Answer:

Area = 20w^3 + 7w^2 - 11w + 2

Step-by-step explanation:

Given

Length = 4w^2 + 3w - 1

Width = 5w - 2.

Required

Determine an expression for the area

Area is calculated as:

Area = Length *Width

Area = (4w^2 + 3w - 1) * (5w - 2)

Expand

Area = 20w^3 + 15w^2- 5w - 8w^2 - 6w + 2

Collect like terms

Area = 20w^3 + 15w^2- 8w^2 - 5w - 6w + 2

Area = 20w^3 + 7w^2 - 11w + 2

8 0
3 years ago
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