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andrezito [222]
3 years ago
7

Abe has a bag of marbles and wants to divide them into sets. The first set will have 2 marbles; the second set, 5; the third set

, 8; the fourth set, 11; and so on. How many sets will he have if he starts with 40 marbles?
Mathematics
1 answer:
uranmaximum [27]3 years ago
5 0

2 + 5 = 7

7 + 8 = 15

15 +11 = 26

11+3 = 14

26 + 14 = 40

 so he has 5 sets

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The width of a rectangle is the length minus 2 units. The area of the rectangle is 63
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7

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3 years ago
Today there are a total of six toll-free area codes: 800, 844, 855, 866, 877, and 888. Assume that all seven digits for the rest
Ludmilka [50]

Answer:

6 \times 10^{7}

Step-by-step explanation:

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Finding the possible toll free numbers for one area code and multiplying that by 6 will give use the total number of toll free numbers for all 6 area codes.

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The first number "a" can take any digit from 0 to 9. So there are 10 possibilities for this place. Similarly, the second number can take any digit from 0 to 9, so there are 10 possibilities for this place as well and same goes for all the 7 numbers.

Since, there are 10 possibilities for each of the 7 places, according to the fundamental principle of counting, the total possible toll free numbers for one area code would be:

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4 0
3 years ago
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Sholpan [36]

Answer:

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b). 6:30 am

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   Arrival time of the train at middlewich = 6:51

b). Kate has to reach Southam before 9:00 am

   Therefore, time of the latest train that she can catch to get to work on time is 6:30 am

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c). Duration of journey from Westchester to Eastwick = 06:34 - 06:00

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