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3 years ago

What is 2/5 plus 4???

Mathematics

2 answers:

grin007 [14]3 years ago

7 0

Answer:

4 2/5

Decimal: 4.4

Step-by-step explanation:

valentina_108 [34]3 years ago

4 0

Answer:

4 2/5 or 4.4

Step-by-step explanation:

2/5 = 0.4

4.0 + 0.4 = 4.4

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Translate to a quadratic equation, then solve using the quadratic formula. The length of a rectangular air filter is 3 inches l

balu736 [363]

Answer:

Width of the rectangle = 17 inches

Length of the rectangle = 31 inches

Step-by-step explanation:

Let w be the width of the rectangle.

Given:

Width of the rectangle = w

Length of the rectangle = 2w - 3

Area of the rectangle $=527\ inches^{2}$

Solution:

We know that the area of the rectangle.

$Area\ of\ rectangle = length\times width$

$w(2w-3)=527$

$2w^{2}-3w-527=0$

Now, we first find the root of the above equation.

Use quadratic formula with $a=2, b=-3, c=-527$ .

$t=\frac{-b\pm \sqrt{(b)^{2}-4ac}}{2a}$

Put a, b and c value in above equation.

$w=\frac{-(-3)\pm \sqrt{(-3)^{2}-4(2)(-527)}}{2(2)}$

$w=\frac{3\pm \sqrt{9+8\times 527}}{4}$

$w=\frac{3\pm \sqrt{9+4216}}{4}$

$w=\frac{3\pm \sqrt{4225}}{4}$

$w=\frac{3\pm 65}{4}$

For positive sign

$w=\frac{68}{4}$

w = 17 inches

So, width of the rectangle is 17 inches.

Length of the rectangle.

$Length = 2\times w-3$

$Length = 2\times 17-3$

$Length = 34-3$

Length = 31 inches

So, length of the rectangle is 31 inches.

Therefore, width and length of the rectangle is 17 inches and 31 inches.

5 0

4 years ago

Can anyone help?????

Inessa [10]

Answer:

m angle ABC would be 75

Step-by-step explanation:

Since the sides are equivalent then that mean the corresponding angles are as well causing angle B & C to be equal and getting you the answer of 75.

Also don't forget if in any case you had to find C just put angle B & A and x (representing C) equal to 180 ( Since every triangle is equal to this )

4 0

3 years ago

Please help me i will give brainliest..

Ghella [55]

Answer:

Step-by-step explanation:

5 0

3 years ago

wendy earns a 7 and 5/8% commission on her total sales, She had a total of $10,524.68 in sales. How much commission did Wendy ea

Veronika [31]

Answer:

The amount of commission earned by Wendy is $6,577.93

Step-by-step explanation:

Commissions can be described as a type of variable remuneration that is paid to an employee based on the value of services rendered or products sold.

Commission is calculated by multiplying the commission rate by the value of services rendered or products sold.

From the question, we have:

Fixed earnings = $7

Commission rate = 5/8% = 0.625%

Total sales = $10,524.68

Amount of commission = Commission rate * Total sales = 0.625% * $10,524.68 = $6,577.93

Therefore, the amount of commission earned by Wendy is $6,577.93.

Note that the fixed earning of $7 will be earned by Wendy whether she made sales or not. Therefore, the fixed earning is not part of the commission and should not be added to the commission.

7 0

3 years ago

Find the slope of the line that passes through each pair of points.

myrzilka [38]

1)
$\sf Slope = \frac{y_2-y_1}{x_2-x_1} = \frac{7-1}{2-0} = \frac{6}{2} =\boxed{3}$

The slope of the line that passes through points (0,1) and (2,7) is 3

2)
$\sf Slope = \frac{y_2-y_1}{x_2-x_1} = \frac{5-1}{2-3} = \frac{4}{-1} =\boxed{-4}$

The slope of the line that passes through points (2,5) and (3,1) is -4

3)
$\sf Slope = \frac{y_2-y_1}{x_2-x_1} = \frac{7-2}{4-1} = \frac{5}{3} =\boxed{1\frac{2}{3}}$

The slope of the line that passes through points (1,2) and (4,7) is 5/3 or 1 2/3

4 0

3 years ago