Answer:
3x - 14
Step-by-step explanation:
f = 2x + 1
2x + 1 * g
g = x - 7
2x + 1 * x - 7 = 3x - 7
3x - 7 * 2 = 3x - 14
Comments:
Hope this helped (:
also I assumed the $ = f at the begining so please let me know if I am wrong
Answer:
G(t)=12-2t
Step-by-step explanation:
Okay, first we need to find out how many gallons he lost, so we multiply 2 by 3 and get 6 gallons used.
Next, now knowing 6 gallons are left and 6 have been used we now add to get 12 gallons originally.
Then, now that we have the rate of change and the starting number we put together the equation to the way that best suits the question
Last, to check our work plug six into t next to the two and solve to get six gallons used,
I hope this helps you
If i am right a thanks would be appreciated if i am wrong please leave a comment
Answer:
$16.40
Step-by-step explanation:
We divide the cost of the bottle by how many ounces it has to find the cost per ounce. So we have 
.
-7+3 = -4
but since it is an absolute value it becomes positive 4
there is a negative sign in front of the equation so the positive 4 now becomes -4
Answer is -4
Answer:
(1) commutative property of the addition.
(2) distributive property of the multiplication and associative property of the addition.
(3) addition property of the equality.
(4) multiplication property of the equality.
Step-by-step explanation:
First we start with:
4x + 1 + x + 3 = -11
Here we use the commutative property of the sum, which says that:
A + B = B + A
So we can reorder the terms in a sum, and we can rewrite our equation as:
4*x + x + 3 + 1 = -11
Here we also used the associative property of the sum, that says that:
A + B + C = (A + B) + C = A + ( B + C)
wich means that we can perform the sum in any order we want, then we can add the 3 and the 1
4*x + x + 4 = -11
Now we use the distributive property of the multiplication, which says that:
(A + B)*C = A*C + B*C
Then we can rewrite our equation as:
(4 + 1)*x + 4 = -11
Now we solve the sum in the parentheses to get:
5*x + 4 = -11
Now we can use the addition property of the equality, we can add (-4) in both sides to get:
5*x + 4 - 4 = -11 - 4
5*x = -15
Now we can use the multiplication property of the equality, and multiply both sides by (1/5) to get:
5*x*(1/5) = -15*(1/5)
x = -5
