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tino4ka555 [31]
3 years ago
11

Mark, Carlos, Ben, and Taj ran the 1,600-meter relay today at the track meet. If their times were 55.2 seconds, 54.34 seconds, 5

5.15 seconds, and 52.08 seconds, what was their total time for the race (in seconds)?
A. 216.77 seconds

B. 206.67 seconds

C. 167.09 seconds

D. 217.49 seconds
Mathematics
2 answers:
spayn [35]3 years ago
6 0
The answer is A.
55.2+54.34+55.15+52.08=216.77
ad-work [718]3 years ago
4 0
55.2+54.34+55.16+52.08 = 216.77
So A
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Find the dimensions of a rectangle with a perimeter of 52cm if it’s length is 4cm more than its width
Zina [86]
So the perimeter(P) of a rectangle would be:
P= 2L+2W
L being the length and W being the width.
The problem says the length is 4cm more than the width, so L= 4+W.
So if we substitute L with 4+W, we get:
P= 2(4+W) + 2W
Use the Distributive Property
P= 8+2W+2W
Combine like terms
P=8+4W
Since we're given the perimeter, we could replace P with 52. So:
52=8+4W
Subtract 8 to both sides
44=4W
Divide 4 to both sides
11=W
Therefore, the width is 11cm
And since the length is 4cm more than the width, we could add 4cm to 11cm to find that the length is 15cm
Thus, the dimensions of the rectangle are 15cm by 11cm
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3 years ago
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Answer:

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8 0
3 years ago
A 39 inch piece of steel cut into 3 pieces so that the second piece is twice as long as the first piece and the third piece is t
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The length of the first piece is 4 the second piece is 8 and the third piece is 27.  Your Welcome

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3 years ago
3 yards of ribbon can be purchased for $10. How many yards can $5 purchase.
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Answer:

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Using Euclid's division algorithm prove that : 847,2160 are co-primes
AysviL [449]
Definition of eo-primes or relatively primes: Two numbers are said to be co-prime or relatively prime If their HCF IS 1 Hence to prove 847 and 2160 as co-prime numbers we will find their HCF and which should be 1

New steps to find HCF will be as under

2160 = 847 x 2+ 466
847 = 466 ×1 +381
466 = 381 x 1 + 85
381 =85 x 4+ 41
85 =41 x 2+3
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Therefore, the HCF=1 Hence, the numbers are co-primes (relatively prime).
5 0
3 years ago
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