40 gold
5 gold:3 red = x gold:24 red
24 × 5= 120
120/3 = 40
1) 8 + 10 = 18
2) f / d
3) 8 + 7
4) 2 x 5
I hope this helps! Sorry if I did it incorrectly! ❤️ Have a nice day!
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.
Answer:
77
Step-by-step explanation:
"Of" means multiply. Make the percent a decimal and multiply. So 1.1 x 70 = 77
