Answer:
3.2
Step-by-step explanation:
12.8/4 which makes the answer 3.2
Answer:
B
————-
I’m not 100% sure though
Answer:
LCM:
7: 36
8: 6
9: 40
10: 15
GCF:
1: 10, sum is 140
2: 4, sum is 64
3: 14, sum is 84
4: 1, sum is 105
(This picture is hard to read but I am assuming that it is asking for exponents) (^ means exponent):
1: 8^7
2: 4^1
3: 10^4
Evaluating Each expression:
5: 41
6: 2
7: 27
8: 28
Algebraic expressions:
1: 5f-22
2: 48g
3: e/12
4: 3(m+7)
Please give Brainliest Answer! Thanks!
Step-by-step explanation:
Answer:
a) 
b) 
Step-by-step explanation:
Data
Brine a (Ba)
Brine b (Bb)
we have that per every minute the amount of solution that enters the tank is the same as the one that leaves the tank (15 Lt / min)
, then the amount of salt (y) left in the tank after (t) minutes: 
Finally:
a)
b) 
being y(t) the amount of salt (y) per unit of time (t)
Answer:
v = 9/2 + sqrt(61)/2 or v = 9/2 - sqrt(61)/2
Step-by-step explanation:
Solve for v over the real numbers:
-v^2 + 9 v - 5 = 0
Multiply both sides by -1:
v^2 - 9 v + 5 = 0
Subtract 5 from both sides:
v^2 - 9 v = -5
Add 81/4 to both sides:
v^2 - 9 v + 81/4 = 61/4
Write the left hand side as a square:
(v - 9/2)^2 = 61/4
Take the square root of both sides:
v - 9/2 = sqrt(61)/2 or v - 9/2 = -sqrt(61)/2
Add 9/2 to both sides:
v = 9/2 + sqrt(61)/2 or v - 9/2 = -sqrt(61)/2
Add 9/2 to both sides:
Answer: v = 9/2 + sqrt(61)/2 or v = 9/2 - sqrt(61)/2
