Answer:
8333 sheets of paper
Step-by-step explanation:
1000 grams is 1 kg
If there are 12 sheets of paper that weight 40g, then 40/12=3.33
1 sheet of paper=3.333g
If we need 2 1/2 kg of paper, 2 1/2 kg is exactly 2500g.
2500 x 3.333 = 8332.5 sheets of paper
Falling at the rate of 2.5 m/s for 45 seconds, the anchor fell
(2.5 m/s) x (45 s) = 112.5 meters .
If it wound up only 40 meters underwater, then it must have fallen
(112.5 m - 40 m) = 72.5 meters
from its storage position on the big cruise ship,
before it ever reached the water.
Since it was falling at the rate of 2.5 m/s, it took
(72.5 m) / (2.5 m/s) = 29 seconds
to get down to the water surface after it started dropping.
Answer:
The roots of the equation are x=-3 and x=-2.5
Step-by-step explanation:
<u><em>The correct quadratic equation is</em></u>
2x^2+11x+15=0
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
so
substitute in the formula
therefore
The roots of the equation are x=-3 and x=-2.5
Answer:
-1.4f - 24
Step-by-step explanation:
First combine like terms
-2.3f + 0.9f - 15 - 9
-1.4f -24
So, simplified it is
-1.4f - 24
Answer:
32
Step-by-step explanation:
u first do 120 divided by 2
which is 60 then subtract that by 28 which is 32
to check it add 28 plus 32 which is 60 then double it which is 120
hope this helps
sorry if this is late