<span>Let n = the number of nickles
Let q = the number of quarters
Then for your problem we have
(1) n + q = 43 and
(2) 5*n + 25*q = 100*6.95 (always work in cents to avoid decimal numbers) or
(3) 5*n + 25*q = 695
Now substitute n of (1) into (3) and get
(4) 5*(43 - q) + 25*q = 695 or
(5) 215 - 5*q + 25*q = 695 or
(6) 20*q = 695 - 215 or
(7) 20*q = 480 or
(8) q = 24
Then using (1) we get
(9) n + 24 = 43 or
(10) n = 19
Let's check these values.
Is (.05*19 + .25*24 = 6.95)?
Is (.95 + 6.00 = 6.95)?
Is (6.95 = 6.95)? Yes
Answer: Kevin and Randy have 19 nickles and 24 quarters in the jar.</span>
Answer: $375
Step-by-step explanation:
If you multiply 125•4 it gives you 500 so just subtract 125 from 500 to get your answer
Answer:
Complementary angles are two angles that have a sum of 90°.
Supplementary angles are two angles that have a sum of 180°.
A ABC BCD SUPP 90+90=180
B BCA ACD COMPL 45+45=90
C BCA CDA NEITHER 45+90=135
D ABC CDA SUPP 90+90=180
E BAC CAD COMPL 45+45=90
Step-by-step explanation:
