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marysya [2.9K]
3 years ago
11

A silver chain has 100 links. Each link is made of thin silver wire and is in the shape of a circle of radius 2,5 cm. Find the v

alue of the chain if the silver wire costs 6 cents per centimetre ( Use 3,14 for π )​
Mathematics
1 answer:
Tamiku [17]3 years ago
4 0

Number of links = 100

Shape of each link = Circle

Radius = 2.5

Area = πr²

= 3.14×2.5×2.5

= 19.625

Now for 100 links

19.625×100

1962.5Cm²

Cost = 1962.5 × 0.06

= $117.75

Must click thanks and mark brainliest

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2 years ago
Solve the following word problem: Kay made 5 less phone calls today than Stephanie. If together they made 21 calls, how many cal
professor190 [17]
Answer:
Kay made 8 phone calls
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Explanation:
Assume the number of phone calls that Stephanie made is x.
We are given that:
Kay made 5 phone calls less than Stephanie.
This means that:
Kay made x-5 phone calls

We know that the total number of phones is 21.
This means that:
21 = x + x - 5

Now we solve for x as follows:
21 = x + x - 5
21 = 2x - 5
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x = 13

This means that:
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Kay made x - 5 = 13 - 5 = 8 phone calls

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5 0
3 years ago
37,831 thousand in standard form
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8 0
3 years ago
Read 2 more answers
Find the area and the circumference of a circle with diameter 9 yards using the value 3.14 for pi
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5 0
2 years ago
In a recent wedding, the groom's age was fifteen years more than half the bride's age. If the sum of their ages was 51 years, ho
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Answer:

Step-by-step explanation:

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Bride: x

Add both ages together

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Double Check: 24+27=51

3 0
3 years ago
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