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Ludmilka [50]
3 years ago
12

13 + -13 =0 exemplifies which property

Mathematics
2 answers:
Stolb23 [73]3 years ago
8 0
Inverse property of addition
stira [4]3 years ago
3 0
Zero property is going to be your answer
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You order two tacos and a salad. The salad costs $2.50. You pay 8% sales tax and leave a $3 tip. You pay a total of $13.80. How
denis23 [38]
Let T = cost of a taco
Let S = cost of a salad

(2 tacos + 1 salad) + (8 % of 2 tacos and 1 salad) + 3 = 13.80

2T + S + .08(2T + S) + 3 = 13.80
2T + 2.5 + .08(2T + 2.5) + 3 = 13.80
2T + 2.5 + .16T + .20 + 3 = 13.80
2.16T + 5.7 = 13.80
2.16T = 8.10
T = 8.10/2.16 = $3.75

Check: 2T + S + .08(2T + S) + 3 = 13.80
2(3.75) + 2.50 + .08(2(3.75)+2.5) + 3 = 13.80
7.5 + 2.5 + .08(10) + 3 = 13.8
13.80 = 13.80
Answer checks as correct
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3 years ago
Explain how to find the mean of a data set.
mezya [45]
You must add up all of the values and then divide them by the number of the values.
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Find the volume of a square pyramid with base edges of 48 cm and a slant height of 26 cm.
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The volume of a square pyramid with base edges of 48 cm and a slant height of 26 cm = 7,680cm^3
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The answer is 22/5


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To double check, divide 22 by five and you should get 4.4, or 4 2/5 as a fraction

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Step-by-step explanation:

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