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kozerog [31]
3 years ago
15

dawn has 5/6 yard of lace. She uses 4/5 of it for a dress and the rest for a jewel box. How much lace does she use for the jewel

box.
Mathematics
2 answers:
Brums [2.3K]3 years ago
6 0
5/6 x 4/5= 20/30 ----->2/3 Used for dress
5/6 -2/3= amount used for jewel box ---> 1/6 yard
GrogVix [38]3 years ago
3 0
amount\ used\ for\ jewel\ box=all\ lace-\ lace\ used\ for\ dress\\\\\
amount\ used\ for\ jewel\ box=\frac{5}{6}-\frac{4}{5}=\frac{25}{30}-\frac{24}{30}=\frac{1}{30}\\\\ \frac{1}{30}\ of\ lace\ is\ for\ jewel\ box.

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The exterior angle of a certain regular polygon is 60°. How many sides does the polygon have?.
givi [52]
<h3>Answer:  6</h3>

Work Shown:

E = exterior angle = 60 degrees

n = number of sides of the regular polygon

n = 360/E

n = 360/60

n = 6

The regular polygon has 6 sides.

3 0
2 years ago
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Shtirlitz [24]

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5 0
3 years ago
Write the number 270 as a sum of three numbers so that the sum of the products taken two at a time is a maximum. (Enter the thre
iren [92.7K]

Answer:

x=y=z=90.

Step-by-step explanation:

let the 3 numbers be x,y,z.

let s be sum

s=x+y+z

we need to maximize xy+yz+zx

or , xy + y(270-(x+y))+x(270-(x+y)) = P(x)

Use Lagrange's Multipliers

⇒ΔP= λΔS

⇒\frac{x+y}{x+z} =1

⇒y=x

⇒\frac{x+z}{x+y} =1

⇒z=y

⇒x=y=z

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⇒x= 90

hence, x=y=z=90.

3 0
2 years ago
Please help with this!!!
RSB [31]

Answer:

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So to graph an inverse of the function given we have to switch the x and y values of the function:

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So our first point is (-1,1)

So our inverse point would be (1,-1)

The second point is (-2,2)

So our inverse point would be (2,-2)

The third point is (-3,3)

So our inverse point would be (3,-3)

Hope this helps!

5 0
3 years ago
Which equation represents this statement : Kate weighs 3 times as much as Jen their total weight is 140 pounds how much does eac
Monica [59]
Kate weighs 105 and Jen weighs 35
3 0
3 years ago
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