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blsea [12.9K]
3 years ago
6

Michael has some coins in his pocket consisting of dimes, nickels, and pennies. He has two more nickels than dimes, and three ti

mes as many pennies as nickels. How many of each kind of coins does he have if the total value is 52 cents?
Mathematics
2 answers:
velikii [3]3 years ago
7 0
X = number of dimes 
x + 2 = number of nickels
3(x + 2) = number of pennies 

10x + 5(x + 2) + 3(x + 2) = 52
10x + 5x + 10 + 3x + 6 = 52
18x = 36
x = 2

x = 2 (number of dimes)
x + 2 = 4 (number of nickels)
3(x + 2) = 12 (number of pennies)

Check:
2(10) = 20 cents in dimes
4(5) = 20 cents in nickels
12(1) = 12 cents in pennies
Total = 52 cents 
Rashid [163]3 years ago
6 0
He has d dimes.
He has 2 more nickles than dimes, so he has d + 2 nickles.
He has 3 times as many pennies as nickles. He has 3(d + 2) pennies.

Now we figure out the value of each type of coin in cents.
d dimes are worth 10d cents.
d + 2 nickels are worth 5(d + 2) cents.
3(d + 2) pennies are worth 3(d + 2) cents.

Add all expressions of value and set equal to 52 cents.

10d + 5(d + 2) + 3(d + 2) = 52

10d + 5d + 10 + 3d + 6 = 52

18d + 16 = 52

18d = 36

d = 2

He has 2 dimes.
He has 2 more nickles than dimes, so he has 2 + 2 nickles, or 4 nickles.
<span>He has three times as many pennies as nickels, or 3(4) = 12 pennies.

Answer: 2 dimes, 4 nickles, 12 pennies.
</span>
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Based on the construction, we can logically deduce that: A. yes; the compass was kept at the same width to create the arcs for points C and D.

<h3>What is a line segment?</h3>

A line segment can be defined as the part of a line in a geometric figure such as a triangle, circle, quadrilateral, etc., that is bounded by two (2) distinct points and it typically has a fixed length.

In Geometry, a line segment can be measured by using the following measuring instruments:

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<h3>What is an arc?</h3>

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Based on the construction with arcs created above and below the line segment from points A, we can infer and logically deduce that it is true that the compass was kept at the same width to create the arcs for points C and D.

In conclusion, yes, the construction demonstrated how to bisect a line segment correctly by hand.

Read more on arcs here: brainly.com/question/11126174

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Complete Question:

The construction has a given segment AB. Arcs have been created above and below the segment from points A that are equidistant from point A. The compass was kept at the same distance, placed on point B, and two additional arcs were created above and below the segment that intersect with the first arcs created. The intersection of the arcs above the segment created point C. The intersection of the arcs below the segment created point D. A line was drawn from point C to D through the segment.

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A. Yes; the compass was kept at the same width to create the arcs for points C and D.

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C. No; the compass was not kept at the same width to create the arcs for points C and D.

D. No; a straightedge was used to create segment CD.

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