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3 years ago

4 3/5 - 4/5 = ? please explain it ixl

Mathematics

1 answer:

miskamm [114]3 years ago

8 0

Answer:

$\frac{19}{3 } \: or \: 3 \frac{4}{5}$

Step-by-step explanation:

Change the mixed number into a regular fraction.

$\frac{23}{5} - \frac{4}{5}$

Subtract the numerator.

$\frac{19}{5}$

As a mixed number:

$3 \frac{4}{5}$

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PLEASE HELP! IM ALMOST DONE !

maksim [4K]

Answer:

D. $\frac{22x + 48}{x^2 - 36}$

Step-by-step explanation:

Given:

$\frac{15}{x - 6} + \frac{7}{x + 6}$

Required:

Find its equivalent expression

Solution:

Add both fractions

Thus,

$\frac{15}{x - 6} + \frac{7}{x + 6}$

$\frac{15(x + 6) + 7(x - 6)}{x^2 - 36}$

$\frac{15x + 90 + 7x - 42}{x^2 - 36}$

$\frac{15x + 7x + 90 - 42}{x^2 - 36}$

$\frac{22x + 48}{x^2 - 36}$

Therefore,

$\frac{15}{x - 6} + \frac{7}{x + 6} = \frac{22x + 48}{x^2 - 36}$

3 0

3 years ago

5 and 13 GCF=? LCM=?

Gwar [14]

Answer:

G.C.F of 5 and 13 is 1.

L.C.M of 5 and 13 is 65.

4 0

2 years ago

I cannot seem to figure out how to solve this

IRINA_888 [86]

Angle b is 65
In order for a shape to be a triangle, all sides have to add up to 180 degrees. Since 65 + 50 = 115 and 180 - 115 = 65,
65 is the answer for angle b

8 0

3 years ago

The graph of the following systems of equations is ______.

nexus9112 [7]

Answer:

coinciding lines

Step-by-step explanation:

y=4-6x

6 0

3 years ago

A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the

jonny [76]

Answer:

x = $36 , y = $ 838

Step-by-step explanation:

Solution:-

The company makes a profit of $y by selling widgets at a price of $x. The profit model is represented by a parabola ( quadratic ) equation as follows:

$y = -x^2 + 72x -458$

We are to determine the profit maximizing selling price ( x ) and the corresponding maximum profit ( y ).

From the properties of a parabola equation of the form:

$y = ax^2 + bx + c$

The vertex ( turning point ) or maximum/minimum point is given as:

$x = -\frac{b}{2a} \\\\x = -\frac{72}{-2} = 36$

The profit maximizing selling price of widgets would be x = $36. To determine the corresponding profit ( y ) we will plug in x = 36 in the given quadratic model as follows:

$y ( 36 ) = - ( 36 )^2 + 72 ( 36 ) - 458\\\\y ( 36 ) = -1296 + 2592 - 458\\\\y ( 36 ) = 838$

The maximum profit would be y = $838

4 0

3 years ago