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makvit [3.9K]
3 years ago
14

Can someone help with explain how to do these, with formulas or techniques?

Mathematics
1 answer:
Otrada [13]3 years ago
6 0
I hope this helps you

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Least to greatest .5 1/5 .35 12/25 4/5
N76 [4]
1/5, .35, 12/25, .50, 4/5
3 0
3 years ago
The population in the current year is 31.5 million and the real GDP is $814 million. The previous year's statistics were a popul
andrew11 [14]

Answer:

The change in the standard of living, measured by growth in real GDP per person, is 0.1356%

Step-by-step explanation:

Given,

In the current year,

Population = 31.5 million,

Real GDP = $814 million,

So, the real GDP per person = \frac{814}{31.5} ≈ 25.841

In the previous year,

Population = 31 million,

Real GDP = $800 million,

So, the real GDP per person = \frac{800}{31} ≈  25.806

Hence, change percentage = \frac{\text{Change in GDP per person}}{\text{Previous year GDP per person}}\times 100

=\frac{25.841-25.806}{25.806}\times 100

=\frac{0.035}{25.806}\times 100

=\frac{3.5}{25.806}

≈ 0.1356 %

5 0
3 years ago
HELP FAST FAST FAST FAST RIGHT NWOOWOWOW
Naily [24]
What do you need help with?
7 0
3 years ago
Help, please!! I need the answer
Lorico [155]

Answer:

D

Step-by-step explanation:

5 0
3 years ago
Consider the following problem: A farmer with 750 ft of fencing wants to enclose a rectangular area and then divide it into four
gregori [183]

Answer and step-by-step explanation:

For any rectangle, the one with the largest area will be the one whose dimensions are as close to a square as possible.

However, the dividers change the process to find this maximum somewhat.

Letting x represent two sides of the rectangle and the 3 parallel dividers, we have 2x+3x = 5x.

Letting y represent the other two sides of the rectangle, we have 2y.

We know that 2y + 5x = 750.

Solving for y, we first subtract 5x from each side:

2y + 5x - 5x = 750 - 5x

2y = -5x + 750

Next we divide both sides by 2:

2y/2 = -5x/2 + 750/2

y = -2.5x + 375

We know that the area of a rectangle is given by

A = lw, where l is the length and w is the width.  In this rectangle, one dimension is x and the other is y, making the area

A = xy

Substituting the expression for y we just found above, we have

A = x(-2.5x+375)

A = -2.5x² + 375x

This is a quadratic equation, with values a = -2.5, b = 375 and c = 0.

To find the maximum, we will find the vertex.  First we find the axis of symmetry, using the equation

x = -b/2a

x = -375/2(-2.5) = -375/-5 = 75

Substituting this back in place of every x in our area equation, we have

A = -2.5x² + 375x

A = -2.5(75)² + 375(75) = -2.5(5625) + 28125 = -14062.5 + 28125 = 14062.5

6 0
3 years ago
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