Answer:
Step-by-step explanation:
Given
<u>Functions:</u>
- S(t) = –0.122t³ + 3.49t² – 14.6t + 136
- H(t) = –0.115t³ + 3.71t² – 20.6t + 124
<u>Finding the difference between S(5) and H(5)</u>
- S(5) - H(5) =
- –0.122t³ + 3.49t² – 14.6t + 136 - (–0.115t³ + 3.71t² – 20.6t + 124) =
- (-0.122 + 0.115)*5³ + (3.49 -3.7)*5² - (14.6 -20.6)*5 + 136 - 124 = 35.875
Answer is 35.875 grams
Let's take two different equations.
4x+2y=8
7x+3y=-10
(I just came up with these on the spot, so the answers might be strange but i should be able to explain nevertheless)
First, let's solve the first equation for "y".
4x+2y=8
-4x -4x
2y=8-4x
/2
y=4-2x
Now that we have "y", let's plug it into the second equation.
7x+3(4-2x)=-10
7x+12-6x=-10
x+12=-10
-12 -12
x=-22
Alright, now we have "x" definitively, let's plug it in to find "y".
4(-22)+2y=8
-88+2y=8
+88 +88
2y=96
/2
y=48
So from this example you can see. You solve one variable in terms of another (solve y as being 4-2x), plug it into the second equation to find one variable's value, then plug that variable's value back in again later to get the first variable's value.
9514 1404 393
Answer:
3
Step-by-step explanation:
Assuming your two equations are ...
You want to find the multiplier k such that ...
6 + (-2)k = 0 . . . . total x-coefficient after the equations are combined
Dividing by 2 gives ...
3 - k = 0
3 = k . . . . . . add k
The multiplier needed is 3.
Answer: 1 6/21
Step-by-step explanation:
1/3 = 7/21
2/7 = 6/21
2/3 = 14/21
total: 27/21
= 1 bottle and 6/21 of another bottle
2 because you need the fírmala and divided
