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2 years ago

SOMEONE ANSWER AND EXPLAIN PLEASE ILL MARK BRAINLIEST

Mathematics

1 answer:

VikaD [51]2 years ago

6 0

Answer:

(2,1)

Step-by-step explanation:

This is the answer by substitution.

change 2x+y=5 to y=5-2x

5x-2(5-2x)=8

x = 2

y=5-2(2)

y = 1

(x,y) = (2,1)

You're welcome!!!

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3 years ago

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14(0.89)^x+4.5 =162

lisabon 2012 [21]

$14(0.89)^{x + 4.5} = 162$
$\frac{14(0.89)^{x + 4.5}}{14} = \frac{162}{14}$
$0.89^{x + 4.5} = 11\frac{4}{7}$
$ln(0.89^{x + 4.5}) = ln(11\frac{4}{7})$
$(x + 4.5)ln(0.89) = ln(11\frac{4}{7})$
$\frac{(x + 4.5)ln(0.89)}{ln(0.89)} = \frac{ln(11\frac{4}{7})}{ln(0.89)}$
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