What is the solution to this equation? 6+7(b−1)=5+b A. b = 0
2 answers:
6 + 7(b-1) = 5 + b
6 + 7b - 7 = 5 + b
7b - 1 = 5 + b
7b (-b) - 1 (+1) = 5 (+1) + b (-b)
6b = 6
6b/6 = 6/6
b = 1
hope this helps
B = 1. The guy that answered before me has the perfect explanation.
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Im sorry i don’t know this but you should try photomath, it might help!
X = quarters
y = dimes
0.25x + 0.10y = 6.95 or 25x + 10y = 695
x + y = 44
25x + 10y = 695
25 (x + y = 44)
25x + 10y = 695
25x + 25y = 1,100
-15y = -405
y = 27 dimes
and 17 quarters
I think it's $21.75 with tax
Answer:
is that a question?
Step-by-step explanation:
Let n be the amount of 80% solution; and 150-n be the amount of 20% solution. Then:
.8n+.2(150-n)=.6(150)
.8n+30-.2n=90
.6n=60
n=100
150-n=50
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