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BlackZzzverrR [31]
4 years ago
13

Mary has ​$

Mathematics
1 answer:
Wewaii [24]4 years ago
3 0
160 - 4b = m
she has 160 so you have to subtract the price of beads (4) multiplied by the number of beads (b). And the answer is the amount of money that has left (m)
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Our math team had m students last year, but this year it has already n students! By what percent did the number of students grow
AlekseyPX
For this case we are going to assume the following:
 m: whole number greater than zero.
 n: integer greater than zero.
 Where,
 n> m
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 Answer:
 
the number of students did grow by:
 
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4 0
4 years ago
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Solve this equation: -88=5y-13
nadya68 [22]

Answer:

y=-15

Step-by-step explanation:

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3 years ago
A window is in the form of a rectangle capped by a semicircle. The width of the rectangular portion is equal to the diameter of
xxTIMURxx [149]

Answer:

The answer is below

Step-by-step explanation:

Let x be the diameter of the semicircle. radius = x/2

The window is a combination of a rectangle and semicircle.

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Perimeter of window = x + y + y + πx/2

20 = x + 2y + πx/2

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2y = 20 - x(1 - π/2)

y = 10 - x(1 - π/2)/2

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A = x(10 - x(1 - π/2)/2) + πx²/8

A = 10x - x² - πx²/4 + πx²/8

A = 10x - x² - πx²/8

The maximum area is at dA / dx = 0

dA / dx = 10 - 2x - 2πx/8

0 = 10 - 2x - πx / 4

2x + πx / 4 = 10

2.785x = 10

x = 3.59 feet

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3 0
3 years ago
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d1i1m1o1n [39]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
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lisov135 [29]

Answer:

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Step-by-step explanation:

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5/17

Hope this helps!

3 0
3 years ago
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