Answer:
a = 1, b = 7
Step-by-step explanation:
Given the 2 equations
3a + 6b = 45 → (1)
2a - 2b = - 12 → (2)
Multiply (2) by 3 and add to (1) to eliminate the term in b
6a - 6b = - 36 → (3)
Add (1) and (3) term by term
(3a + 6a) + (6b - 6b) = (45 - 36)
9a = 9 ( divide both sides by 9 )
a = 1
Substitute a = 1 in either (1) or (2) and solve for b
(1) → 3 + 6b = 45 ( subtract 3 from both sides )
6b = 42 ( divide both sides by 6 )
b = 7
Answer:
38 cm
Step-by-step explanation:
I’m pretty sure the answer 30
Answer: there is no photo for an example.
Step-by-step explanation:
please put a photo so we can help!
Answer:
yes
Step-by-step explanation:
1/2=3/6
4/6=4/6
4/6>3/6
therefore as long as both fractions are less than a whole the bigger the fraction is the closer it is to a whole.
