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m_a_m_a [10]
3 years ago
6

28 = -4(d − 79) + 100 I know how to do these, but I just don't want to risk my IXL percent going down... Thanks! (solve for d)

Mathematics
2 answers:
Deffense [45]3 years ago
8 0

Answer:

D=97

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

taurus [48]3 years ago
6 0

Answer:

Step-by-step explanation:

28=-4 (d-79)+100

28=-4d+316+100

4d=316+100-28

4d=388 (divide both side by 4)

d=97

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slega [8]
B because 67 is not equal to 96
E because 67 is less than 96
6 0
3 years ago
Write an equation for the nth term of the arithmetic sequence. Then find a 30
AnnZ [28]

Answer:

The nth term is given by: a_n = -9 + 3(n-1)

The 30th term is 78.

Step-by-step explanation:

Arithmetic sequence:

The nth term of an arithmetic sequence is given by:

a_n = a_1 + (n-1)d

In which a_1 is the first term and d is the common difference between terms.

-9, -6, - 3,0

This means that a_1 = -9, r = -6 - (-9) = -6 + 9 = 3. So

a_n = -9 + 3(n-1)

30th term:

a_30 = -9 + 3(30-1) = -9 + 87 = 78

The 30th term is 78.

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3 years ago
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ValentinkaMS [17]
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3 years ago
Pls, help with this two math questions it is urgent! 14pts!
77julia77 [94]

Complementary angles add up to 90 degrees.

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A sprint duathlon consists of a 5 km run, a 20 km bike ride, followed by another 5 km run. The mean finish time of all participa
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Answer:

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