2 years ago

Alana and two of her friends evenly split the cost of a meal. each person owes $14.68.

Mathematics

1 answer:

True [87]2 years ago

8 0

Answer:

$44.04

Step-by-step explanation:

14.68 * 3 = 44.04

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Function (A or B) has the greater initial value because the initial value for function A is _ and the initial value for Function

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Answer:

Function B has the greater initial value because the initial value for function A is 4 and the initial value for Function B is 5

Step-by-step explanation:

<em>The initial value of a function is the output value of the function when the input value is 0</em>

Initial value of A is y=4 at x=0,

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initial value of B is y=0*6+5= 5 at x=0

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2 years ago

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In a family, each brother has as many sisters as brothers, but each sister has twice as many brothers as she has sisters. How ma

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Answer:

4 brothers and 3 sisters

Step-by-step explanation:

Let x be the number of brothers and y be the number of sisters in the family.

1. Each brother has x-1 brothers and y sisters. If each brother has as many sisters as brothers, then

$x-1=y.$

2. Each sister has y-1 sisters and x brothers. If each sister has twice as many brothers as she has sisters, then

$2(y-1)=x.$

3. Solve the system of two equations:

$\left\{\begin{array}{l}x-1=y\\ \\2(y-1)=x\end{array}\right.\Rightarrow 2(y-1)-1=y,\\ \\2y-2-1=y,\\ \\2y-y=2+1,\\ \\y=3.$

Then

$x=y+1=3+1=4.$

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3 years ago