Answer:
The best option is C
Step-by-step explanation:
I believe this because it is the cheapest amount of money PER PENCIL. For a it is $0.37 per pencil, for b it is $0.35 per pencil, for c it is $0.33 per pencil, and for d it is $0.40 per pencil. I did these calculations by taking the amount of money and dividing by the amount of pencils. So, for what the question asks, the answer would be C because it wants the one with the least amount of money PER PENCIL.
Answer:
Jada should have multiplied both sides of the equation by 108.
Step-by-step explanation:
The question is incomplete. Find the complete question in the comment section.
Given the equation -4/9 = x/108, in order to determine Jada's error, we need to solve in our own way as shown:
Step 1: Multiply both sides of the equation by -9/4 as shown:
-4/9 × -9/4 = x/108 × -9/4
-36/-36 = -9x/432
1 = -9x/432
1 = -x/48
Cross multiplying
48 = -x
x = -48
It can also be solved like this:
Given -4/9 = x/108
Multiply both sides by 108 to have:
-4/9 * 108 = x/108 * 108
-4/9 * 108 = 108x/108
-432/9 = x
x = -48
Jada should have simply follow the second calculation by multiplying both sides of the equation by 108 as shown.
Answer:
The greatest amount of fizzy drink he can make is 420 ml
Step-by-step explanation:
we know that
The ratio of the parts of orange juice to parts of lemonade is
![\frac{5}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B2%7D)
so
using proportion
Find out the milliliters of lemonade needed to make fizzy drink with 300 ml of orange juice
Let
x -----> milliliters of lemonade needed
![\frac{5}{2}=\frac{300}{x}\\\\x=300*2/5\\\\x=120\ ml](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B2%7D%3D%5Cfrac%7B300%7D%7Bx%7D%5C%5C%5C%5Cx%3D300%2A2%2F5%5C%5C%5C%5Cx%3D120%5C%20ml)
<em>Find the greatest amount of fizzy drink he can make</em>
Adds the milliliters of lemonade plus the milliliters of orange juice
![120+300=420\ ml](https://tex.z-dn.net/?f=120%2B300%3D420%5C%20ml)
therefore
The greatest amount of fizzy drink he can make is 420 ml
Step-by-step explanation:
a square plus b squad plus c
Answer:
<em>$170</em>
<em></em>
Step-by-step explanation:
Given that:
One time fee for the use of trash dumpsters = $50
Charges for demolition per hour = $15
Time period for which trash dumpsters are used per day = 8 hours
To find:
The cost of 8 hours of operation = ?
Solution:
Here, to find the required cost, we need to first multiply the number of hours with the per hour cost of using the trash dumpsters.
And then we need to add the fixed / one time cost of the trash dumpsters to find the required cost.
Cost for using it for 8 hours = ![8 \times 15 = \$120](https://tex.z-dn.net/?f=8%20%5Ctimes%2015%20%3D%20%5C%24120)
Total cost for using it for full 8 hours = Cost for using it for 8 hours + One time cost = $120 + $50 = <em>$170</em>
<em></em>
Therefore, the answer is: <em>$170</em>