2 years ago

How to evaluate 3(2x-4)-6x+12

Mathematics

1 answer:

Inessa [10]2 years ago

7 0

Answer:

Step-by-step explanation:

6x-12-6x+12=

0x-12+12=0

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Match the real-world problem to its constant of proportionality.

OleMash [197]

Answer:

6.12

1.39

4.12

Step-by-step explanation:

If y ∝ x, then y = kx.

So, the constant of proportionality is given by $k = \frac{y}{x}$

Case 1:

$18.36 for 3 pizzas

Therefore, the constant of proportionality is $\frac{18.36}{3} = 6.12$

Case 2:

$4.17 for 3 pounds of bananas.

Hence, the constant of proportionality is $\frac{4.17}{3} = 1.39$

Case 3:

$16.48 for 4 pounds of potatoes.

Hence, the constant of proportionality is $\frac{16.48}{4} = 4.12$

Case 4:

2 cups of flour to make 24 cookies.

Hence, the constant of proportionality is $\frac{24}{2} = 12$ (Answer)

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3 years ago

Bob need to mix 2 cups of orange juice concentrate with 3.5 cups of water to make orange juice. bob has 6 cups of concentrate. h

USPshnik [31]

3 x 2 = 6 cups of concentrate

3.5 x 3 = 10.5 cups of water

Bob can make 6 cups of orange juice.

8 0

2 years ago

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Select all that apply.

Kay [80]

Answer:

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Step-by-step explanation:

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3 years ago

X=-5 and Y=-6 (x+3y) squared.

Semmy [17]

(x+3y)^2
((-5)+3(-6))^2
(-5+3·6)^2
(-5+18)^2
(-5+18)(-5+18)
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3 years ago

Write in expanded form. Use parentheses to indicate multiplication. (2r) 5

cricket20 [7]

2 x 5 x r will give you this as well as 10r

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3 years ago

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