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MakcuM [25]
3 years ago
12

Please help with these two problems. Show work

Mathematics
2 answers:
coldgirl [10]3 years ago
7 0
1. 23 x 50
20 x 50 = 1000
3 x 50 = 150
1000 + 150 = 1150

2. 30 x 82
30 x 80 = 2400
30 x 2 = 60
2400 + 60 = 2460
MissTica3 years ago
3 0

Answer:

For the first one, it is 1150. For the second one, it is 2460.

Step-by-step explanation:

Think of 23 x 50 as (20 x 50) + (3 x 50).

20 x 50 is 1000. 3 x 50 is 150. 1000 + 150 is 1150.

Think of 30 x 82 as (30 x 80) + (30 x 2)

30 x 80 is 2400. 30 x 2 is 60. 2400+60 is 2460.

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katovenus [111]

Hello from MrBillDoesMath!

Answer:

Discussion:

I stared at the numbers 19, 29, 39, 49, 59, 69,... for a second and noticed that adding 10 to any number gives the next number to the right. For example,


19 + 10 = 29

29 + 10 = 39

39 + 10 = 49

etc.....


A recursive formula would be:

a(0) = 19        

a(n+1) = a(n) + 10    if n >= 0


Regards,  

MrB

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3 years ago
What's the pattern in 30 21 12 3 -6
Bas_tet [7]
 a_b=39 - 9b
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Step-by-step explanation:

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Pi High School ordered 40 science books. The next week, the school ordered 30 algebra books. The bill for the first order was $3
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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