Step 2 was his error.
The following problem is solved by Alan:
In solving for x, you have to cross multiply between the numbers.
In that case, step 2 would look like this:
(25)(x) = (8)(200)
NOT THIS:
(8)(x) = (25)(200)
Now continue all the way.
25x = 1600
x = 1600 ÷ 25
x = 64
Answer:
The answer is m = 7
Step-by-step explanation:
Rewrite in slope-intercept form.
The slope-intercept form is y = mx + b , where m is the slope and b is the y-intercept.
y = mx + b
Multiply 19 by 5.
y = 7x + 95
Using the slope-intercept form, the slope is 7 .
m = 7
I hope this helps.
The cost of each option is given by the total amount required to obtain
the volume of water Janine drinks in a year.
Responses:
Number of bottles of water Janine drinks in a day = 3 bottles
Volume of a bottle = 16.9 ounces
Volume of water Janine drinks in a year = 3 × 16.9 × 365 = 18505.5
Volume of water Janine drinks in a year = 18,505.5 ounces
Volume of water = 18,505.5 ounces = 547.273 liters
The cost of 24-packs of 16.9 ounces bottles = $3.29
Number of packs she will buy in a year is therefore;
Cost per year = 45.625 × $3.29 ≈ $150.11
The cost of a reusable bottle = $10
Cost of each option to filter 547.723 liters of water.
Total cost of a faucet mounted filter = $10 + $28 + $33 = $71.00
Total cost using the water filter = $10 + $22 + 2 × $20 = $72
The cost of using the under sink filter = $10 + $130 = $140
Therefore;
Learn more about total cost here: