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Lady_Fox [76]
2 years ago
13

Factor the four-term polynomial ab + ac - 4b - 4c

Mathematics
1 answer:
Troyanec [42]2 years ago
5 0
A b + a c - 4 b - 4 c = a ( b + c ) - 4 ( b + c ) = 
= (b + c) (a - 4)
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At the county fair, Darius can purchase 3 candy apples and 4 bags of peanuts for $11.33. He can purchase 9 candy apples and 5 ba
Ksenya-84 [330]
Let c represents the cost of a candy apple and b represents the cost of a bag of peanuts.

Darius can purchase 3 candy apples and 4 bags of peanuts. So his total cost would be 3c + 4b. Darius can buy 3 candy apples and 4 bags of peanuts in $11.33,so we can write the equation as: 

3c + 4b = 11.33   (1)

Darius can purchase 9 candy apples and 5 bags of peanuts. So his total cost would be 9c + 5b. Darius can buy 9 candy apples and 5 bags of peanuts in $23.56,so we can write the equation as: 

9c + 5b = 23.56   (2)

<span>Darius decides to purchase 2 candy apples and 3 bags of peanuts. The total cost in this case will be 2c + 3b. To find this first we need to find the cost of each candy apple and bag of peanuts by solving the above two equations.

Multiplying equation 1 by three and subtracting equation 2 from it, we get:

3(3c + 4b) - (9c + 5b) = 3(11.33) - 23.56

9c + 12b - 9c - 5b = 10.43

7b = 10.43

b = $1.49

Using the value of b in equation 1, we get:

3c + 4(1.49) = 11.33

3c = 5.37

c = $ 1.79

Thus, cost of one candy apple is $1.79 and cost of one bag of peanuts is $1.49.

So, 2c + 3b = 2(1.79) + 3(1.49) = $ 8.05

Therefore, Darius can buy 2 candy apples and 3 bags of peanuts in $8.05</span>
3 0
3 years ago
8. 3(4x + 4) + (x + 8) = 7x – 2(-3x + 11) Find the value of x
Marina86 [1]

There are no values of x that make the equation true. No solution.

3 0
3 years ago
The diagram represents an enlargement of a rectangle by a scale factor of 4,
Lapatulllka [165]

Answer:D 16inches by 8 inches

Step-by-step explanation:

3 0
3 years ago
4. Find the distance between the points (7,-6) and (4, -3)
quester [9]

Answer:

Step-by-step explanation:

3 sqrt2

5 0
2 years ago
Read 2 more answers
Solve for x in simplest form: 4 = 2/3(2x -9)
irina [24]

Answer:

x = 7.5

Step-by-step explanation:

4 = 2/3 (2x - 9)

4 = 4/3x - 6

4 + 6 = 4/3x - 6 + 6

10 = 4/3x

10 x 3/4 = x

x = 7.5

8 0
3 years ago
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