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Mamont248 [21]
3 years ago
14

Solve and check:8a-4=25+6(a-8)

Mathematics
1 answer:
OlgaM077 [116]3 years ago
5 0
8a - 4 = 25 + 6 (a - 8)

(distribute the 6)

8a - 4 = 25 + 6a - 48

(combine like terms 25 - 48)

8a - 4 = 6a - 23

( subtract 6a from both sides)

2a - 4 = -23

(add 4 to both sides)

2a = -19

(divide both sides by 2)

a = - 9.5

////CHECK/////

8 (-9.5) - 4 = 25 + 6 ( -9.5 -8)

(plug each side into a calculator)

-80 = -80

FINAL ANSWER:

a = -9.5
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2 years ago
Suppose that the second term of a geometric sequence is 4 and the sixth term is 16. Find the fourth term
Kaylis [27]

Answer:

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Step-by-step explanation:

<h3>Given GP</h3>
  • a₂ = 4,
  • a₆ = 16
<h3>To find</h3>
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<h3>Solution</h3>
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<u>Substitute ar in the second equation</u>

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  • r = √2

<u>Then finding a₄</u>

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7 0
2 years ago
The width of the rectangle below is 9 cm, and its length is 17
Orlov [11]

Answer:

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Step-by-step explanation:

Length × Width= Area

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4 0
3 years ago
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x= all real numbers.
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nikdorinn [45]

Answer:

<em><u>4(10+9) - 40 + 36</u></em>

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<em><u>3(12+7) - 36 + 21</u></em>

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