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4 years ago

What is 6f-23=[-5] plz help

Mathematics

1 answer:

xz_007 [3.2K]4 years ago

7 0

Add 23 from both sides
6f = 18
F= 3

6(3)-23
= 18-23
=-5
Believe me

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Melinda can paint 1/4 of a wall in the same time that Desiree can paint 2/5 of a wall. How much of a wall will Melinda have pain

Harlamova29_29 [7]

Answer:

Melinda will paint 5/8 part of a wall when Desiree has finished painting 1 wall.

Step-by-step explanation:

It is given that:

Melinda can paint 1/4 of a wall in the same time that Desiree can paint 2/5 of a wall.

Let 't' be the time taken by Melinda and Desiree to paint 1/4 and 2/5 of a wall respectively.

Now the time taken by Desiree to paint 1 wall will be:

2/5 of wall= t

1 wall= (5/2) t

Now in this time ( i.e. 5/2 t) the part of a wall painted by Melinda will be:

As Melinda takes-- t time to paint= 1/4 of a wall

5/2 t she will paint= (5/2)×(1/4) of a wall= (5/8) of a wall.

Hence Melinda will paint 5/8 part of a wall when Desiree has finished painting 1 wall.

3 0

3 years ago

Factor -4 out of -8d+20

Kazeer [188]

Answer:

-4(2d-5)

Step-by-step explanation:

-8d+20

-4(2d-5)

8 0

3 years ago

Convert 714 years to minutes. (please show the steps to how you did the problem.)

Karolina [17]

1yr 525948.77
—— = ———————
714yr. X min

Now, cross multiply

X min = 714 yr
———. X 525948.77 min ➡️ x min = 375527421.78000003 min

714 years = 375527421.78000003 min

3.753e+ 8

5 0

3 years ago

find the equation of the perpendicular bisector of segment ab with endpoints a=2,2 and b=-4,6 if the perpendicular bisector inte

aleksklad [387]

Equation of perpendicular bisector is , $y=\frac{3}{2} x+\frac{11}{2}$

Length of both pa and pb are $\sqrt{\frac{65}{4} }$ unit.

Slope of segment ab is, $\frac{6-2}{-4-2} =-\frac{2}{3}$

So, slope of perpendicular bisector will be, negative of reciprocal of slope of segment ab.

Therefore, slope of perpendicular bisector is, $\frac{3}{2}$

Since, perpendicular bisector passes through the mid point of segment ab.

So, coordinate of mid point of segment ab is,

$(\frac{2-4}{2},\frac{2+6}{2} )=(-1,4)$

Thus, perpendicular bisector of ab passing through (- 1, 4) and have slope 3/2.

So, equation of angle bisector is,

$y=\frac{3}{2} x+\frac{11}{2}$

Since, the perpendicular bisector intersects the y-axis at point p

So, coordinate of point p is (0, 11/2)

By applying distance formula,

$pa=\sqrt{(2-0)^{2}+(2-11/2)^{2} }\\\\ =\sqrt{4+\frac{49}{4} }\\\\ =\sqrt{\frac{65}{4} }$

$pb=\sqrt{(-4-0)^{2}+(6-11/2)^{2} }\\\\ =\sqrt{16+\frac{1}{4} }\\\\ =\sqrt{\frac{65}{4} }$

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8 0

3 years ago

00:00 Which is the simplified form of <br><img src="https://tex.z-dn.net/?f=%20%7B6%7D%5E%7B%20-%203%7D%20" id="TexFormula1" tit

SVETLANKA909090 [29]

Answer:

1/216

Step-by-step explanation:

Simplify the following:

6^(-3)

Hint: | In order to evaluate 6^3 express 6^3 as 6×6^2.

6^3 = 6×6^2:

1/(6×6^2)

Hint: | Evaluate 6^2.

6^2 = 36:

1/(6×36)

Hint: | Multiply 6 and 36 together.

6×36 = 216:

Answer: 1/216

4 0

3 years ago

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