Answer:
11 dimes, 17 nickels
Step-by-step explanation:
d + n = 28, put one variable by itself on a side, d = 28 - n
.10d + .05n = 1.95
Sub the first equation into the second
.10(28 - n) + .05n = 1.95
2.8 - .10n + .05n = 1.95
2.8 - .05n = 1.95
-.05n = -0.85
n = 17 nickels
d + 17 = 28
d = 11 11 dimes
23 is negative correlation
Answer:
75%
Step-by-step explanation:
A percent is a value out of 100.
Change the fraction
to an equivalent fraction with the denominator equal to 100.
×
= 
This fraction represents a percent.
= 75%