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1+4d = 8.75(5-z) Help please I can't figure it out.
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1+4d = 8.75(5-z) Help please I can't figure it out.

User Dre Ross
by
4.5k points

2 Answers

4 votes

Answer:

d = -35z + 171 / 16

z = -16d - 171 / 35

User Thushara Buddhika
by
4.2k points
2 votes

Answer:

d = -35z + 171 / 16

z = -16d - 171 / 35

Explanation:

  • Let's find "d" first.

1 + 4d = 8.75(5 - z)

*100 *100

------------------------------------

100 + 400d = 875 (5 - z)

-100 -100

-------------------------------------

400d = -875z + 4275

/400 /400

-------------------------------------

d = -35z + 171 / 16

  • Now, let's find "z".

1 + 4d = 8.75(5 - z)

*100 *100

------------------------------------

100 + 400d = 875 (5 - z)

/875 /875

-------------------------------------

4(4d + 1) / 35 = 5 - z

-5 -5

--------------------------------------

4(4d + 1) / 35 - 5 = -z

/-1 /-1

---------------------------------------

-16d - 171 / 35 = z

User NewBike
by
3.8k points
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