B) 10 gallons of the 12% and 10 gallons of the 7%
C) 8 gallons of the 12% and 12 gallons of the 7%
D) 2 gallons of the 12% ad 18 gallons of the 7%
Answer: 12 gallon of 12% sugar and 8 gallon of 7% sugar.
Step-by-step explanation:
Let we use x gallon of 12% of sugar mixture and y gallon of 7% of sugar mixture.
Thus, According to the question,
The resultant mixture having quantity 20 gallon,
Therefore, x + y = 20 ------(1)
Also, Sugar in x gallon mixture + sugar in y gallon mixture = sugar in resultant mixture.
Again according to the question,
Resultant mixture has 10% of sugar.
Therefore, 12% of sugar in x gallon + 7% sugar in y gallon = 10% sugar in 20 gallon
0.12 x + 0.07 y = 0.2
12 x + 7 y = 200 --------(2)
7× equation (1),
We get, 7x + 7y = 140 -----(3)
Equation(1) - equation (3)
5 x = 60
x = 12
By putting the value of x in equation (1),
12 + y = 20
⇒ y = 8
Thus, He will add 12 gallon of 12% sugar mixture and 8 gallon of 7% sugar mixture for obtaining 20 gallon of 10% sugar mixture.
Therefore, First Option is correct.
2) Y=-2/7x+2
3) Y=-5/6x-18
4) Y=5/6x-18
5) Y= 6/5+27
6) Y= 2/7x+2
Please and thank you!
Answer:
In number 1:
m = 10/3
b = 19
Step-by-step explanation:
To find the answers to these, simply look to the coefficient of x and the constant at the end of the equation. The number attached to x is always m (which is known as the slope). The number at the end is b (or the y-intercept).
B. A function is a relation in which each value of the input variable is paired with exactly one value of the output variable.
C. The vertical line test may be used to determine whether a function is one-to-one.
D. A sequence is a function whose domain is the set of real numbers.
C. FALSE, because the vertical line test may be used to determine whether a relation is the function.
D. FALSE, because the function domain can be any set.
Answer:
y = -5x + 11
y = -5x + 19