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3 years ago

A pie chart uses 360 degrees to represent 45 people. How many people are represented by an angle of 152 degrees

Mathematics

1 answer:

Sedbober [7]3 years ago

6 0

Answer: 19 people will be represented by an angle 152 degrees.

Step-by-step explanation:

Set up a proportional relationship to solve for this

$\frac{360}{152} = \frac{45}{y}$ Cross multiply

360y = 6840 Divide both sides by 360

y = 19

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This scale drawing of a rectangular computer chip has dimensions 5,5 centimeters by 12.75 centimeters. The length

podryga [215]

Answer:

280.5 mm^2

Step-by-step explanation:

scale * 25.5 mm = 127.5 mm 1275/25.5 = 5 scale factor

25.5 * 55/5 = 280.5 mm^2

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2 years ago

A (5,3) and B(3,-2) are two fixed points. Find the equation of the locus of P, so that the

andre [41]

Answer:

$37=5x-2y,\,1=5x-2y$

Step-by-step explanation:

If $(x_1,y_1),\,(x_2,y_2),\,(x_3,y_3)$ are coordinates of a triangle then area of a triangle is equal to $\frac{1}{2}|x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2)|$

Let point P be $(x,y)$

Put $(x_1,y_1)=(5,3),\,(x_2,y_2)=(3,-2),\,(x_3,y_3)=(x,y)$

Area of a triangle = $\frac{1}{2}|5(-2-y)+3(y-3)+x(3+2)|$

$=\frac{1}{2}|-10-5y+3y-9+5x|\\\\=\frac{1}{2}|-19+5x-2y|$

Also,

Area of a triangle = 9 square units

$9=\frac{1}{2}|-19+5x-2y|\\\\18=|-19+5x-2y|$

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$18=-19+5x-2y,\,-18=-19+5x-2y\\\\37=5x-2y,\,1=5x-2y$

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3 years ago

Need some help with 8th grade math

Anna007 [38]

Answer:

D = (3,3)

E = (-5,0)

F = (-2,2)

Step-by-step explanation:

the y axis is the vertical line of the graph so an example of flipping would be (-3,5) turns to (3,5) changing only the x value same the other way around (5,-9) turns to (-5,9) only the x value changes symbol

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3 years ago

Read 2 more answers

The Math Club is sponsoring a bake sale. If their goal is to raise at least $200, how many pies must they sell at $4.00 each in

wolverine [178]

Answer:

The Math Club must sell at least 50 pies to reach the goal

The graph in the attached figure

Step-by-step explanation:

Let

x-----> the number of sold pies

we know that