Answer:
x = 5
y = 0
Step-by-step explanation:
3x + y = 15
3x -y = 15
Add the two equations;
6x = 30
Inverse operations;
6x = 30
/6 /6
x = 5
Back substitute;
3(5) + y = 15
15 + y = 15
y = 0
The model is 3 inches, since 3 times 3 is 9 and 1 times 3 is 3.
Answer:
v=3.6
Step-by-step explanation:
Okay so 8 (hector) - 3(Mary) = 5 years apart
So, 16 (hector) - 5 (years apart) = 11 (Mary’s age)
193.75 miles cause 7.75 * .5 = 3.875 and 3.875* 50 = 193.75
