Mathematics, 03.03.2020 22:33 Anthony1442
Given the equations β2x+ 4/3y=1β and βy-9/13x=9β, by what factor would you multiply the first equation so that combining the two equations would eliminate x?
A- β-9/26β
B- β9/26β
C- β1/2β
D- β-9/13β
Answers: 1
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Mrs. julienβs and mrs. castillejoβs classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julienβs class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejoβs class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.
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If its non of them tell me..valerie took a day-trip. she drove from her house for a while and took a coffee break. after her coffee break, she continued driving. after 2 hours of driving after her coffee break, her distance from her house was 210 miles. her average speed during the whole trip was 60 miles per hour.valerie created the equation yβ210=60(xβ2) to represent this situation, where xx represents the time in hours from her coffee break and yy represents the distance in miles from her house.which graph correctly represents valerie's distance from her house after her coffee break?
Answers: 1
Given the equations β2x+ 4/3y=1β and βy-9/13x=9β, by what factor would you multiply the first equati...
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