The second photo is the correct graph.
Cynthia has a photo frame that has a circumference of 56.52cm. What is the radius of the photo frame?
2 answers:
Answer:
cm
Step-by-step explanation:
The circumference formula is:
We are given the circumference, which is 56.52cm.
The question wants us to find the radius, r.
To achieve this, we must solve for r.
Plugging in 56.52 for C we get:
Dividing both sides by , we find r:
≈
If you want to round it up, you can round it to 9cm.
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Answer
Find out the how many pounds of metal are in 1,950 lb of ore .
To proof
let us assume that the pounds of metal are in 1,950 lb of ore be x .
As given
In an ore, 9.8% of its total weight is metal.
ore weight = 1,950 lb
9.8% is written in the decimal form
= 0.098
Than the equation becomes
x = 0.098 × 1950
x = 191.1 pounds
Therefore the 191.1 pounds of metal are in 1,950 lb of ore .
Hence proved