Answer:
Step-by-step explanation:
Given
Represent Goldfish with g and hermit crabs with h.
The first statement, we have:
The second statement, we have:
Required
Determine the selling price of 6 goldfish and 4 hermit crabs
The equations are:
--- (1)
--- (2)
Make g the subject in (2)
Divide both sides by 4
Substitute 
for g in (1)
Multiply through by 4
Open bracket
Collect Like Terms
Make h the subject
Substitute 4 for h in
This implies that:
1 goldfish = $2
1 hermit crab = $4
The cost of 6 goldfish and 4 hermit crabs is:
Answer:
The recoil velocity of the gun is 
and is pointing in opposite direction to the velocity of the bullet.
Step-by-step explanation:
Use conservation of linear momentum, which states that the momentum of the bullet (product of the bullet's mass times its speed) should equal in absolute value the momentum of the recoiling gun (its mass times its recoil velocity).
We also write the mass of the bullet in the same units as the mass of the gun (for example kilograms). Mass of the bullet = 0.010 kg
In mathematical terms, we have:
Answer:
0
Step-by-step explanation:
f(x) = y = 0
so, f(x) = 0
--
Answer:2.74889357189
Step-by-step explanation:
Answer:0.542=0.500 + 0.040+0.002
= \frac{5}{10} + \frac{4}{100} +\frac{2}{1000}
=5 tenth + 4 hundredths + two thousandths
One tenth = \frac{1}{10}
One Hundredth= \frac{1}{100}
One thousandth= \frac{1}{1000}
Step-by-step explanation:
