Answer: m=6, m=-4
Step-by-step explanation:
To solve this proportion, we have to cross multiply.


Now that we have cross multiplied, we actually need to FOIL the left side to expand the equation.

Combine like terms.

We can move all terms to one side and then solve for m.

We can actually factor this to:

We set each factor equal to 0 to find m.
m-6=0
m=6
m+4=0
m=-4
Answer:
Multiply 4 by the difference of 10 and 3, then add 5
There are 72 tens in 720.
Answer:Thus, the number of dimes is
7
and the number of nickels is 7
+
6
=
13
0.10
x
+
0.05
(
x
+
6
)
=
1.35
0.10
x
+
0.05
x
=
1.35
−
0.30
0.15
x
=
1.05
x
=
1.05
0.15
=
7