Answer:
The equation that represents Liz's walk is:
5x + 3 = 4
Step-by-step explanation:
Liz walked 6/10 mile, stopped for a break, and walked the rest of the way to the market.
Let Liz's walk after that break be x mile.
Before the break, she had walked 6/10 miles. Adding these distances, she had walked a total of (x + 6/10) miles.
Because it is 8/10 miles from Liz's house to the market, all the walks she had to do to get to the market is 8/10 miles.
That is,
(x + 6/10) is the same as 8/10.
x + 6/10 = 8/10
Multiplying by 10, we have
10x + 6 = 8
Dividing by 2 gives
5x + 3 = 4
And this is the equation we wish to write.
Step-by-step explanation:
Below is an attachment containing the solution.
x²+2x-15=0
6z−10w=8
Answer:
if your looking for z it is 5/8k+2.375
Step-by-step explanation:
Answer:
Step-by-step explanation:
Please, include the instructions.
I'm assuming you want to solve this system of linear equations for z and w, assuming that k is an unknown constant.
Use the method of elimination by addition and subtraction. To eiiminate w, multiply all four terms of the first equation by 10, obtaining:
10 z + 10w - 30 = 10k
6z - 10 w = 80
Then 16z - 30 - 80 = 10k, or
16z -110 = 10k, Simplifying this, we get:
10(k + 11)
z = ---------------
16
Substituting this expression for z into the first equation, we get:
(10/16)(k + 11) + w - 3 = k. We must solve this for w:
-(10/16)(k + 11) + w - 3 = k), or
-(10/16)(k + 11) - w + 3 = -k
Then -(10/16)(k + 11) + 3 + k = w
and so the solution, in terms of the unknown constant k, is
10(k + 11)
( --------------, -(10/16)(k + 11) + 3 + k )
16
Answer:
2/7
Step-by-step explanation:
So we multiply 3 by 2, and get 6.
Then we multiply 1 by 4, and get 4.
Next we give both terms new denominators -- 4 × 2 = 8.
So now our fractions look like this:
6/8 - 4/8
6 − 4 = 2
So the answer is:
2/8
Answer:
Everything will be split in threes. You can do this by either multiplying the cost by 1/3 or dividing by 3.
Step-by-step explanation: