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Black_prince [1.1K]
3 years ago
7

Using the rate of $8 for every 2 pounds of rice, how much would a 1/2 pound of rice cost

Mathematics
2 answers:
GaryK [48]3 years ago
6 0
2/½=4
8/4=2
It would be 2$
Finger [1]3 years ago
3 0
2 pound = $8

1 pound = $8 ÷ 2 = $4

1/2 pound = $4 ÷ 2 = $2

Answer: $2
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erastovalidia [21]

Answer:

f=2

Step-by-step explanation:

0.3+0.5f-0.7

Move the varibale (0.5f) to the left-hand side and change it's sign to negative.

-0.5+0.3+-0.7

Move the constant to the right hand side and change it's sign

-0.5f=-0.7-0.3

Calulate the differnce

-0.5f=-1

divide both sides by -0.5

F=2

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3 years ago
If y= 3x + 6, what is the minimum value of (x^3)(y)?
Rainbow [258]

Answer:

Given the statement: if y =3x+6.

Find the minimum value of (x^3)(y)

Let f(x) = (x^3)(y)

Substitute the value of y ;

f(x)=(x^3)(3x+6)

Distribute the terms;

f(x)= 3x^4 + 6x^3

The derivative value of f(x) with respect to x.

\frac{df}{dx} =\frac{d}{dx}(3x^4+6x^3)

Using \frac{d}{dx}(x^n) = nx^{n-1}

we have;

\frac{df}{dx} =(12x^3+18x^2)

Set \frac{df}{dx} = 0

then;

(12x^3+18x^2) =0

6x^2(2x + 3) = 0

By zero product property;

6x^2=0   and 2x + 3 = 0

⇒ x=0 and x = -\frac{3}{2} = -1.5

then;

at x = 0

f(0) = 0

and  

x = -1.5

f(-1.5) = 3(-1.5)^4 + 6(-1.5)^3 = 15.1875-20.25 = -5.0625


Hence the minimum value of (x^3)(y) is, -5.0625






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3 years ago
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Tatiana [17]

Answer:

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<em>Hope This Helps!</em>

3 0
3 years ago
Read 2 more answers
The blueprint of a rectangular house is 2.5 inches by 1.5 inches. If the scale is 1:20, what is the perimeter of the actual hous
defon

Answer:

160

Step-by-step explanation:

(2.5 x 2)+(1.5 x 2) =8      (perimeter of scale)

8x20 = 160

4 0
2 years ago
A food pantry is making packages. Each package weighs 64 pounds. Each of their packages contains 4 identical bags of rice and a
Vinil7 [7]

Answer:

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Step-by-step explanation:

Each package is 64 pounds, which give us one side of the equal sign. The other side is ehre we make the 64 pounds. There is one 7 pound bag of beans, and four equal bags of rice. To find the pounds per bag of rice, we do 64-7 to get 57, then 57/4 to get 14.25

7 0
3 years ago
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