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zimovet [89]
4 years ago
10

What is the slope for y= 4/5x-3

Mathematics
2 answers:
Mila [183]4 years ago
5 0
The slope would be 4/5 :)
Scilla [17]4 years ago
4 0

Answer:

The slope would be: m=4/5

Step-by-step explanation:

You're welcome :)

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In a class of 30 students, 13 of them are boys.
Grace [21]

56%

subtract 13 from 30, and you get 17. Then you need to divide 17 and 30

8 0
2 years ago
Read 2 more answers
A rectangular tank with a square​ base, an open​ top, and a volume of 10,976 ft cubed is to be constructed of sheet steel. Find
Marizza181 [45]

Answer:

Dimensions to minimize surface are is 28 ft x 28 ft x 14 ft

Step-by-step explanation:

The Volume of a box with a square base of say;x cm by x cm and height

h cm is;

V = x²h

Now, the amount of material used is directly proportional to the surface area, hence we will minimize the amount of material by minimizing the surface area.

The formula for the surface area of the box described is given by;

A = x² + 4xh

However, we need A as a function of

only x, so we'll use the formula;

V = x²h

V = x²h = 10,976 ft³

So,

h = 10976/x²

So,

A = x² + 4x(10976/x²)

A = x² + 43904/x

So, to minimize the area, it will be at dA/dx = 0.

So,

dA/dx = 2x - 43904/x² = 0

Factorizing out, we have;

2x³ = 43904

x³ = 43904/2

x³ = 21952

x = ∛21952

x = 28 ft

since, h = 10976/x²

h = 10976/28² = 14 ft

Thus,dimension to minimize surface are is 28 ft x 28 ft x 14 ft

7 0
4 years ago
At the school bookstore, Quinn purchased a binder for $4.75 and 4 pens for $0.79 each. What was Quinn's total cost.
gregori [183]

Answer:

$7.91

Step-by-step explanation:

4.75 + .79(4)

4.75 + 3.16

7.91

4 0
4 years ago
Simplify the perfect square.<br> V64
agasfer [191]

Answer:

8?

Step-by-step explanation:

Do you mean \sqrt{64}? If so, when simplified it becomes 8.

3 0
3 years ago
Solve the simultaneous equation<br> 2x + 4y=1<br> 3x - 5y=7
nexus9112 [7]

Answer:

x = 3/2 or 1.5.

y = -1/2 or -0.5.

Step-by-step explanation:

Solve for one equation, one variable.

2x + 4y = 1

subtrract 4y from both sides.

2x = 1 - 4y

divide by 2 to get x by itself.

x = 1/2 - 2y

Now that we have this, we can put it into the other equation.

3x - 5y = 7

Substitute variable.

3(1/2 - 2y) - 5y = 7

Distribute the 3.

1.5 - 6y - 5y = 7

Combine terms.

-11y + 1.5 = 7

Subtract by 1.5.

-11y = 5.5

Divide by -11.

y = -1/2, or -0.5.

Now we can find x. Substitute this into the initial equation.

2x + 4y = 1

Substitute variable.

2x + 4(-1/2) = 1

Multiply.

2x + (-2) = 1

Simplify.

2x - 2 = 1

Add 2 to both sides.

2x = 3

Divide by 2.

x = 3/2, or 1.5.

x = 3/2 or 1.5.

y = -1/2 or -0.5.

6 0
3 years ago
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