A- 53
B- 53
C- 127
D- 54
E- E+20
F- 59
Answer:
(3, 3 )
Step-by-step explanation:
Given the 2 equations
3x - y = 6 → (1)
6x + y = 21 → (2)
Adding the 2 equations term by term will eliminate y, that is
(6x + 3x) + (y - y) = (21 + 6), that is
9x = 27 (divide both sides by 9 )
x = 3
Substitute x = 3 into either (1) or (2) and solve for y
Using (2), then
(6 × 3) + y = 21
18 + y = 21 ( subtract 18 from both sides )
y = 3
Solution is (3, 3 )
Answer:
3 minutes 6 gallons of water is gone so therefor it would take 6 complete minutes but 3 more minutes
Step-by-step explanation:
D should be the correct answer :)
Answer:
59.0 miles per hour
Step-by-step explanation:
When you have an equation with an absolute value, you must consider two options: one with a positive result and another one with a negative result.

In this case you need the maximum safe driving speed which is 59.2 miles per hour