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padilas [110]
1 year ago
10

Need help with 76 and 78 please. Thank you . I will give a Brainly and extra points.

Mathematics
1 answer:
Svet_ta [14]1 year ago
7 0

The set shows the value of the numbers will be:

a. 9

b. 65

<h3>How to illustrate the set?</h3>

76. It should be noted that the value of n(A × B) will be:

n(A) = 3.

n(B) = 3..

n(A × B)

= 3 × 3

= 9

78. n(A) = 13

n(B) = 5

n(A × B)

= 13 × 5

= 65

Therefore, the values are 9 and 65.

Learn more about set on:

brainly.com/question/2166579

#SPJ1

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Mr. Markwood's dog Burke has $1.40 in his doggie
bulgar [2K]

answer:

$6.65

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Alvin wants to know what his average paddling rate was for a canoe trip to a campsite. On the way there it took him 8 hours agai
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let

r--------> Alvin's average paddling rate in km/hour

y -------> speed of the current in km/hour



we know that

speed= distance/time ------> solve for distance

distance=speed*time


to Campsite against the current

speed=r-y-----> speed=(r-3)

time=8 hours

distance=(r-3)*8------> equation 2


From Campsite with the current

speed=r+y-----> speed=(r+3)

time=3 hours

distance=(r+3)*3------> equation 1



equate equation 1 and equation 2-----> because is the same distance

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therefore


the answer is

Alvin's average paddling rate is 6.6 km/hour


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