Answer:
Man has 9 Nickels and 7 dimes.
Step-by-step explanation:
Let Number of dimes be x
and Number of Nickels be y
As Per given data he has two more nickels than dimes.

As we know that
1
= 100 cent
1 nickel is worth = 5 cents =
= 0.05
1 dime is worth = 10 cents =
0 .1
According to given data he has
total nickel and dimes
So the equation becomes,

but 

Substituting value of x in equation
we get

Man has 9 Nickels and 7 dimes.
Answer:
A. -5
Step-by-step explanation:
-9 + 4 = -5
hope this helps
13x - 6y = 2......multiply by 2
3x - 4y = -10....multiply by -3
------------------
26x - 12y = 4 (result of multiplying by 2)
-9x + 12y = 30 (result of multiplying by -3)
-----------------add
17x = 34
x = 34/17
x = 2
now sub 2 in for x into either of the original equations to find y
3x - 4y = -10
3(2) - 4y = -10
6 - 4y = -10
6 + 10 = 4y
16 = 4y
16/4 = y
4 = y
solution is (2,4)
15 caps are needed so that she can earn $85 in an
hour day.
<h3>How is the direct equation calculated?</h3>
The direct variation equation has the form y = kx, where k is the constant proportionality. It is a linear equation with two variables. In a coordinate plane, the direct variation graph is a straight line. A constant is the ratio of two quantities that vary directly. Relationship between two variables that can be described mathematically by an equation where one variable equals a constant multiplied by the other.
For each hour she is compensated $6.50 with $0.45.
For an 8 hour day =6.50 *8 + 0.45x
Let x be the caps and earning is $85
6.50*8+0.45*x=85
=> 52+0.45x=85
=> 0.45x=33
=> x=15 (approx.)
To learn more about direct variation , click here:
brainly.com/question/14254277
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