Let a be an apple, b be a baseball, p be a pineapple and s be a shoe.
Then, from the balance, we model these equations:
p + b = s ----- (1)
2s = 4a
Divide both sides by 2.
s = 2a
Substitute in (1), we get,
p + b = 2a ----- (2)
Also,
p = a + b ----- (3)
Substitute the above in (2), we get,
(a + b) + b = 2a
a + 2b = 2a
Subtract a from both sides.
a = 2b
Substitute in (3), we get,
p = 2b + b = 3b
Hence, 3 baseballs equal one pineapple.
Answer:
(©) 1.05 x 10^5
Step-by-step explanation:
105,000.
Scientific notation is of the for a * 10^b
where a is a number between 1 and less than 10
move the decimal to make a be correct
1.05000
we moved it 5 places to the left, so b is 5
It is positive since we moved it to the left
1.05*10^5
We drop the zeros to the right of the 5
-5 / 4
The fraction is already in its simplest form, can not be further simplified
