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Mathematics 10 Online
OpenStudy (anonymous):

The equations representing income and expenses for Tom's candy store are shown in the graph below. Income: 20,000x - 3y = 0 Expenses: 10,000x - 3y + 90,000 = 0 Let x represent the month and y represent the amount in dollars. In which month were the store's expenses greater than its income?

OpenStudy (anonymous):

OpenStudy (anonymous):

What problem you are facing it's clear from graph expenses were greater then income from (Jan- Sep)

OpenStudy (anonymous):

say

OpenStudy (anonymous):

October july november september so outof those, which is the best answer

OpenStudy (anonymous):

July

OpenStudy (anonymous):

what about this

OpenStudy (anonymous):

See for detailed explaination

OpenStudy (anonymous):

The words are unclear in link

OpenStudy (anonymous):

find the sttem of equations using elimination

OpenStudy (anonymous):

Question is not clear in image

OpenStudy (anonymous):

3x+2y=26 5x-7y=33

OpenStudy (anonymous):

find the system of equations using elimination

OpenStudy (anonymous):

in elimination method we have to eliminate variables to find roots or you can say stems... multiply first eqn by 5 & second by 3 so we can eliminate x... The new eqns will be... 15x+10y=130 15x-21y=99 now subtract them 31y= 31 so, y=1 now put y in any eqn to find x 3x+2*1=26 x=8 You can also do this question by eliminating y You can do this by multiplying first original eqn by 7 & second original eqn by 2

OpenStudy (anonymous):

:) thanks, i understand

OpenStudy (anonymous):

np

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