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Korvikt [17]
2 years ago
7

Determine which is the better buy. 7 kilograms of wood for $13.65 or 5 kilograms of wood for $7.50. What is the unit price for e

ach? Explain how you determined which one is the better buy. Get right, I'll give you brainliest
Mathematics
1 answer:
torisob [31]2 years ago
5 0

Answer:

The wood for 7.50!

Step-by-step explanation:

You are trying to find the unit rate in this situation!

It's simple, Cost ÷ Amount/Weight

13.65 ÷ 7 = 1.95

7.50 ÷ 5 = 1.50

Clearly, the wood for 7.50 is the better buy!

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The area is 80

Step-by-step explanation:

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both triangles on the side; 56

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Please Help?
posledela

Answer:

See explanation

Step-by-step explanation:

The place to begin in attempting to solve a quadratic equation is to try to factorize it. If it can not be factorized, then look at the side of equation that contains the variable (x,b,m,n and so on). If that side is a perfect square, try to take square root of both sides.

Also, if the coefficient of the squared term in the equation is 1 and the coefficient of the middle term bearing the variable is an even number, then you can attempt to use completing the square method. Formula method can be adopted as a last resort.

x^2 -4x + 4 =0 can be solved by factorization

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Hence;

(x-2) (x-2) =0

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(2x-2)^2 = 4 can be solved by taking square root

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Using

x= -b±√b^2 - 4ac/2a

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x= 1 ± √1 - 40/4

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What is the rule for subtractions fractions?
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You must make the dominators (the bottom numbers) equal to each other.

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