Answer:
Step-by-step explanation:
n + d = 12
0.05n + 0.1d = 1 ║ × ( - 10 )
n + d = 12 ..... <em>(1)</em>
- 0.5n - d = - 10 ..... <em>(2)</em>
<em>(1)</em> + <em>(2)</em>
0.5n = 2 ⇒ n = 4
d = 12 - 4 = 8
There are <em>4 nickels</em> and <em>8 dimes</em> in the pocket.
Answer: -9
Step-by-step explanation:
Given
The sum of a number and two is equal to negative 7
Suppose x is that number

So, the number is
.
Answer:
y= -x+2
Step-by-step explanation:
Find the slope of the line between (
2
,
0
) and (
0
,
2 using m
=
y^
2
−
y
^1 / x
^2
−
x
^1, which is the change of y over the change of x
.