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3 years ago

28 lunch; 15 % tip I need to show my workkkk

2 answers:

7 0

$28 for lunch.

15% for tip.

Turn the percentage into a decimal.

15%= .15

28*.15= 4.2

Add that to 28.

28+4.2= $32.20 for the whole meal and tip.

I hope this helps!
~kaikers

NeX [460]3 years ago

5 0

28 x .15 = 4.2

28 + 4.2 = 32.2 <---- ANSWER

Hope this helps :)

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For the following geometric sequence find the explicit formula {1,-3,9,...}

Zarrin [17]

The first term of this series (a+1) is 1 and the common ratio (r) is -3.

Thus, the explicit formula is a_n = 1*(-3)^(n-1).

Must check this! suppose we try to calculate the 3rd term. Then n = 3.

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3 years ago

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The population of West Algebra can be modeled by the equation

AleksAgata [21]

Answer:

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Step-by-step explanation:

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P = 30. 1.04^T

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2 years ago

Which of the following equations represents the perpendicular bisector of WX graphed below?

kotykmax [81]

The coordinates of the 2 given points are W(-5, 2), and X(5, -4).

First, we find the midpoint M using the midpoint formula:

$\displaystyle{ M_{WX}= (\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2} )= (\frac{-5+5}{2}, \frac{2+(-4)}{2} )=(0, -1).$

Nex, we find the slope of the line containing M, perpendicular to WX. We know that if m and n are the slopes of 2 parallel lines, then mn=-1.

The slope of WX is $\displaystyle{ m= \frac{y_2-y_1}{x_2-x_1}= \frac{2-(-4)}{-5-5}= \frac{6}{-10}= -\frac{3}{5}$ .

Thus, the slope n of the perpendicular line is $\displaystyle{ \frac{5}{3}$ .

The equation of the line with slope $\displaystyle{ n= \frac{5}{3}$ containing the point M(0, -1) is given by:

$\displaystyle{ y-(-1)=\frac{5}{3}(x-0)$

$\displaystyle{ y+1= \frac{5}{3}x$

$\displaystyle{ 3y+3=5x$

$\displaystyle{ 5x-3y-3=0$

Answer: 5x-3y-3=0

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3 years ago

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77julia77 [94]

Answer:

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Step-by-step explanation:

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