Answer:
C. 
Step-by-step explanation:
I think the equation meant 
?
Anyways, to factor these kinds of quadratic, keep into consideration:
ONLY if:
Start off by finding factors of c, which in this case, -18:
±(1, 2, 3, 6, 9, 18)
If one of the numbers is negative then the other number must be positive.
Find which two factors will sum up to b, which in this case, is 3.
The only two factors that work are 6 and -3.
Replace them into the factored form:
Answer:
2/3
Step-by-step explanation:
1/3 multiplied by 2 equals 2/3
Answer:
the 4
Step-by-step explanation:
Answer: C(x) = (8 php)*x + 50 php.
Step-by-step explanation:
In a linear equation:
y = a*x + b
a is the slope.
x is the variable
b is the y-intercept.
In this case, we have
The rent is 50 php fixed, plus 8 php per hour.
Then we will pay the 50php only one time, and it does not depend on the number of hours that we rent, then this is the y-intercept.
then if we rent the bike for x hours, we will pay a plus of x*8 php.
Then the total cost for x hours, C(x), will be
C(x) = (8 php)*x + 50 php.
Then the slope is 8 php, and the y-intercept is 50 php.
Answer:
1. $1.5 per pound
2. 8 pounds
3. 3.2 apples
4. 25.6 apples
Step-by-step explanation:
The cost of per pound of apples on sale: 3/2 = 1.5
For $12, the pounds of apples: 12/1.5 = 8
1 lb = 16 oz so 1 apple is 5/16 lb: 1/(5/16) = 3.2
for $12, the number of apples: 8/(5/16) = 25.6
