Answer:
50 nickels, 20 quarters.
Step-by-step explanation:
System of equations (q = # of quarters, n = # of nickels):
<em>q + n = 70, 0.25q + 0.05n = 7.50</em>
the first equation can be changed to q = 70 - n, so we are able to <em>substitute q with 70 - n</em>.
So, it will look like <em>0.25*70 - 0.25n + 0.05n = 7.50</em>. This can be simplified to <em>0.2n = 10</em>, which means that n = 50.
Knowing that we can solve <em>q + 50 = 70</em>, which means that q = 20.
(-1, -9) go 3 to the right and three down from the midpoint <3 pls mark brainliest
Ill try to answer your question
Answer:
21.97 tissues
15.47 cough drops
Step-by-step explanation:
13x1.69=21.97
1.19x15.47
Answer:
The answer is 153
Step-by-step explanation:
You multiply 17 by 3 by 3.
