3 years ago

Please I need help I don’t understand

Mathematics

2 answers:

Nutka1998 [239]3 years ago

6 0

Answer:

c and d i think cuz to the left of 9/10 is 7/10

Step-by-step explanation:

Let me know if this worksssssss

stiv31 [10]3 years ago

3 0

C and D would be the answer

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Solve the system using elimination.<br><br> 2x + 3y = 17<br> x + 5y = 19

ale4655 [162]

$\left\{\begin{array}{ccc}2x+3y=17\\x+5y=19&|\text{multiply both sides by (-2)}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}2x+3y=17\\-2x-10y=-38\end{array}\right}\qquad\text{add both sides of equations}\\.\qquad\qquad-7y=-21\qquad\text{divide both sides by (-7)}\\.\qquad\qquad \boxed{y=3}\\\\\\\text{Substitute the value of y to the second equation}\\\\x+5(3)=19\\\\x=15=19\qquad\text{subtract 15 from both sides}\\\\\boxed{x=4}\\\\Answer:\ x=4\ and\ y=3.$