Jon has to choose which variable to solve for in order to be able to do the problem below in the most efficient manner. 6 x + 3 y = 27. 5 x + 2 y = 21. Which variable should he choose so that he can use substitution to solve the system?
1 answer:
Answer:
He could choose any of the variable because in order to solve a linear equation one of the two variables should be equal. He can multiply the any of the equation with corresponding numbers and can equal the equation to substitute them.
Step-by-step explanation:
2 years ago
so is it a b c or d
You might be interested in
Mu=80, sigma=39, X=85
Z=(X-mu)/sigma = 5/39=0.128=0.13
P(X<=85)= 0.5517 (from Z-table)
so, P(X>85)=1-0.5517=0.4483 approx. thats 44.8% probability.
Answer:
56/5
Step-by-step explanation:
2 4/10=24/10
8 4/5=44/5
24/10+44/5=24/10+88/10=112/10=56/5
Answer:
C
Step-by-step explanation:
Answer:
$20.58
Step-by-step explanation:
28 x 0.30 = 8.4
28 - 8.4 = 19.6
19.6 x 0.05 = 0.98
19.6 + 0.98 = 20.58
