Answer:
2(7) + 5 = 19
Step-by-step explanation:
Okay, so do it like this:
2x+5
x = 7
2(7) + 5
2(7) = 2 x 7
2 x 7 = 14
Now it's 14 + 5
14 + 5 = 19
Your answer is 2(7) + 5 = 19
Answer:
1 sub = $5.50; 1 sandwich = $4.00
Step-by-step explanation:
You can solve this using a matrix and solving using reduced row-echelon form.
Answer:
(x,y,z)=(5,1,-2) or (5,-2,1) or (1,5,-2) or (1,-2,5) or (-2,5,1) or (-2,1,5)
Step-by-step explanation:
700070.07 = 700000 + 70 + 0.07
700000 = 7*10^5
70 =7*10^1
0.07=7*10^-2
An
Step-by-step explanation:
Answer: B. -4 5/12
Step-by-step explanation:
