Answer:
![9\text{ cm}](https://tex.z-dn.net/?f=9%5Ctext%7B%20cm%7D)
Step-by-step explanation:
We can write the following proportion:
![\frac{\text{old perimeter}}{\text{scaled perimeter}}=\frac{\text{old scale factor}}{\text{new scale factor}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7Bold%20perimeter%7D%7D%7B%5Ctext%7Bscaled%20perimeter%7D%7D%3D%5Cfrac%7B%5Ctext%7Bold%20scale%20factor%7D%7D%7B%5Ctext%7Bnew%20scale%20factor%7D%7D)
We know that the original perimeter of the Pentagon is 921 feet. So, substitute 921 for "old perimeter."
We are going to use a scale of 3 cm = 307 feet. Since the 307 feet corresponds to the original perimeter, we are going to substitute 307 for "old scale factor" and 3 for "new scale factor."
This gives us:
![\frac{921}{x}=\frac{307}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B921%7D%7Bx%7D%3D%5Cfrac%7B307%7D%7B3%7D)
So, to find our scaled perimeter, we just need to find x.
Cross multiply:
![307x=2763](https://tex.z-dn.net/?f=307x%3D2763)
Divide both sides by 307:
![x=9](https://tex.z-dn.net/?f=x%3D9)
In other words, the total perimeter of Sawyer's drawing will be 9cm.
And we're done!
the answer is C 3 magazines per book
4 1/4 - 3 3/4 = 1/2
Sarah picked 1/2 pound more than Nathan
Answer:
idk
Step-by-step explanation:
Answer:
Heather served 10 orders.
Felipe served 30 orders.
Jim served 50 orders.
What we know:
<u>Let's refer to each person by their first initial (H, J, & F)</u>
H + J + F = 90
F = 3 * H
J = 5 * H
Substitution:
<u>Let's replace F and J by their equivalents in relation to H (basically making the entire left side only H)</u>
H + (5 * H) + (3 * H) = 90
H + (5H) + (3H) = 90
9H = 90
H = 90/9
H = 10
Final Calculations
<u>Now that we know how many orders Heather served, we can calculate how many Jim and Felipe served</u>
F = 3 * H
F = 3 * 10
F = 30
J = 5 * H
J = 5 * 10
J = 50