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arsen [322]
3 years ago
14

The second term of an arithmetic sequence is 7, the sum of the first four terms in the arithmetic sequence is 12, find the first

term and the common difference

Mathematics
1 answer:
Montano1993 [528]3 years ago
3 0
Consider the following short explanation.
Answer: a1=15; d= -8.

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yanalaym [24]
9+10=19
Answer: 19

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8 0
2 years ago
Solve this problem. A number c decreased by 9 is less than or equal to 20. Find c.
Lady_Fox [76]
So c-9 is less than or equal to 20 so c is less than or equal to 29. So the correct answer is c. Hope this helps :)
5 0
3 years ago
12 inches to 36 inches
Schach [20]
You have to Multiply times 3...
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3 0
3 years ago
Sally is making pillow covers. The last step is to add trim. She purchased 1 yard of trim, but used 3/8 of it on another project
makkiz [27]

Answer:

5/16 of a yard per pillow

Step-by-step explanation:

1. Divide 5/8 by 2 (or 2/1)

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6 0
3 years ago
What is the value of p
Serjik [45]

Answer:

p = 2

Step-by-step explanation:

p + 4/p - 4

multiplying through by p,

p×p + 4/p ×p - 4×p

p² + 4 - 4p = 0

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factorizing,

p(p - 2) -2(p - 2) =0

(p -2)(p -2) =0

p-2 =0

p=2

8 0
3 years ago
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