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Sladkaya [172]
3 years ago
8

Pls help I’m failing

Mathematics
1 answer:
vazorg [7]3 years ago
7 0

Answer:

Decrease by 13%

Step-by-step explanation:

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The lid of a jewelry box is in the shape of a triangular prism. The lid has a height of 12 inches. The triangular base of the li
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Answer:

Volume of the lid is 740in³

Step-by-step explanation:

Kindly find attached rough sketch of the lid

The volume of a triangular prism is expressed as

V= 1/2(a*c*h)

Where

a,is the height of triangular base = 4in

c, triangular base = 31in

h, height of the lid = 12in

Substituting our given data we have

V= 1/2(4*31*12)

V= 1488/2=744in³

To the nearest tenth is 740in³

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focus on the seafood industry only

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3 years ago
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Please help hate geometry
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a.\\\dfrac{12}{7}=\dfrac{k}{8}\ \ \ \ |\text{cross multiply}\\\\7k=12\cdot8\\\\7k=96\ \ \ \ |:7\\\\k=\dfrac{96}{7}\to k=13\dfrac{5}{7}

b.\\\dfrac{3}{4}(x+3)=9\ \ \ \ \ |\text{use distributive property}\\\\\dfrac{3}{4}x+\dfrac{3}{4}\cdot3=9\\\\\dfrac{3}{4}x+\dfrac{9}{4}=9\ \ \ \ \ |\cdot4\\\\3x+9=36\ \ \ \ |-9\\\\3x=27\ \ \ \ |:3\\\\x=9

c.\\\dfrac{4+m}{3}=\dfrac{5}{6}\ \ \ \ \ |\text{cross multiply}\\\\6(4+m)=3\cdot5\ \ \ \ |\text{use distributive property}\\\\6\cdot4+6m=15\\\\24+6m=15\ \ \ \ |-24\\\\6m=-9\ \ \ |:6\\\\m=-\dfrac{9}{6}\\\\m=-\dfrac{3}{2}\\\\m=-1\dfrac{1}{2}\to x=-1.5

d.\\\dfrac{5}{9}c-\dfrac{3}{4}=\dfrac{7}{9}c\ \ \ \ |+\dfrac{3}{4}\\\\\dfrac{5}{9}c=\dfrac{7}{9}c+\dfrac{3}{4}\ \ \ \ |-\dfrac{7}{9}\\\\-\dfrac{2}{9}c=\dfrac{3}{4}\ \ \ \ |\cdot\left(-\dfrac{9}{2}\right)\\\\c=-\dfrac{27}{8}\to c=-3\dfrac{3}{8}

5 0
4 years ago
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There are 600 performers in a dance recital. The ratio of men to women is 4:6. How many men performers were in the
Burka [1]

it would be 240 men

Step-by-step explanation:

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The mean age of 5 women in an office is 23 years old. The mean age of 3 men in an office is 24 years old. What is the mean age (
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Answer:

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The mean age of all the people

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