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emmasim [6.3K]
3 years ago
8

PLEASE I NEED HELP ANSWER (05.03)Bella works at a shoe store. In addition to a fixed salary, she earns a commission for each pai

r of shoes that she sells. The table shows Bella’s total earnings , y (in dollars), from selling x pairs of shoes: Shoe Sales and Earnings Pairs Sold (x) Total Earnings (y) 1 95 2 110 3 125 Which equation best shows the relationship between x and y?
Mathematics
1 answer:
klio [65]3 years ago
6 0
To know the equation represents the relationship of x and y
first solve the slope of the relationshipm = ( y1 - y2) / ( x1 - x2 )m = ( 95 - 110) / ( 1 - 2 )m = 15
using point ( 1 , 95 ) solve the y intercept
y = mx + b
95 = 1(15) + bb = 95 - 15b = 80 and this represents her fixed salary
so the equation is
y = 15x + 80
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Lapatulllka [165]
Take the original price and times it by .8 (you could times it by .2 and then subtract from the original price but multiplying it by .8 is much easier) 64.9x.8= 51.92 take your discounted price and multiply it by 1.085 to account for the sales tax (you multiply by 1.085 to account for the price of the item and the tax you could times it by .085 and then add it on to the price of the item but this way it shortens the amount of steps needed) 51.92x1.085= 56.3332
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3 0
2 years ago
The Chang family is on their way home from a cross-country road trip. During the trip, the function D (t) = 3260 - 55t can be us
Lilit [14]

Answer:

See below.

Step-by-step explanation:

D(t) = 3260 - 55t

The function that shows their distance from home as a function of time shows that they started 3260 miles from home and are driving at 55 miles per hour.

part a:

D(12) = 3260  55(12)

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Interpretation: After 12 hours of driving home, they are 2600 miles from home.

part b:

D(t) = 2490

3260 - 55t = 2490

-55t = -770

t = 14

Interpretation: When they are 2490 miles from home, they have driven for 14 hours.

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dezoksy [38]

Answer: D

<u>Step-by-step explanation:</u>

The first matrix contains the coefficients of the x- and y- values for both equations (top row is the top equation and the bottom row is the bottom equation. The second matrix contains what each equation is equal to.

\begin{array}{c}2x-y\\x-6y\end{array}\qquad \rightarrow \qquad \left[\begin{array}{cc}2&-1\\1&-6\end{array}\right] \\\\\\\begin{array}{c}-6\\13\end{array}\qquad \rightarrow \qquad \left[\begin{array}{c}-6\\13\end{array}\right]

The product will result in the solution for the x- and y-values of the system.

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Answer:

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Step-by-step explanation:

they are similar by AA .

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