I’m guessing that this is for systems of equations?
n - nickels
d - dimes
These are the equations you start off with.
n = 5d-2
0.95 = 0.10d+0.05n
Substitute the top equation for n into the variable n in the bottom equation.
0.95 = 0.10d+0.05(5d-2)
Solve for d.
0.95 = 0.10d+0.25d-0.10
1.05 = 0.35d
3 = d
Substitute d into the top equation and solve for n.
n = 5(3)-2
n = 15-3
n = 12
There are 3 dimes and 12 nickels in the coin purse! Hope this helped <3
Answer:
A. always
Step-by-step explanation:
we know that
Parallel lines are those lines which never intersect to each other and always have same distance between them
Two lines always have same distance will only be possible when they lie on same plane
and we know that
same plane means co-planar
so, two lines will be parallel only if they are co-planar
It means that
Parallel lines are always co-planar
So,
Answer is
A. always
<span>F(x) = |x|
</span><span>right 9 units
</span><span>G(x) = |x – 9|
</span><span>
answer
</span><span>D.G(x) = |x – 9|</span>
Answer:
C
Step-by-step explanation:
Division can be done by "cross multiplying", or multiplying the first equation by the reciprocal of the second equation.
In answer c, the first term remains the same, but the second is the reciprocal of the original. Also, the operator has changed from division to multiplication, so C is the correct answer.
