Answer:
The answer is (1/2 x 18 + 5)
Step-by-step explanation:
This is the answer because that is the only thing in the options higher than Keisha's expression.
Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!
D=2n: there are twice as many dimes as nickels.
n+d+q=52: a total of 52 coins, using d from above in this gives you:
n+2n+q=52 combine like terms on left side
3n+q=52 subtract 3n from both sides
q=52-3n
Then you are told that the coins have a total value of $6 which is equal to 600 cents. So we can say:
25q+10d+5n=600 divide all terms by 5
5q+2d+n=120, and from earlier we saw q=52-3n and d=2n so you have:
5(52-3n)+2(2n)+n=120 expanding...
260-15n+4n+n=120 combining like terms
260-10n=120 subtract 260 from both sides
-10n=-140 divide both sides by -10
n=14, since q=52-3n and d=2n
q=(52-3(14))=52-42=10
d=2(14)=28
So there are 10 quarters, 28 dimes, and 14 nickels or as your choices put it:
q=10, d=28, n=14 (the correct answer is d.)
The best approach to this is to use the law of cosine which is stated as
c2 = a2 + b2 â’ 2ab cos(C)
distance a=176.27; distance b=222.34; angle C=38.59; distance c is the missing value.
Hence c²=176.27²+222.34² -2*176.27*222.34cos38.59°= 138.71 miles
Answer:
cave 1 - 2g= 12 gold, g is 6
2s = 18 silver, s = 9
so she would stay 9 days digging for silver and 6 for gold
cave 2- 1g = 12 gold, g is 12
3s = 18 silver, s = 4
she would stay 4 days looking for silver and 12 for gold
cave 1 is better because its less days since she is digging for gold and silver at same time it would only take maybe 10 days but for cave 2 its would take abt 13 days
Step-by-step explanation: idk i just put some stuff together sorrry its wrong..... but i hope it helps..
