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3 years ago

Solve 7y − 13 ≤ -2y + 12 for y.

Mathematics

2 answers:

Fittoniya [83]3 years ago

8 0

Answer:

Work shown below!

Step-by-step explanation:

7y - 13 ≤ -2y + 12

Add 2y to both sides;

9y - 13 ≤ 12

Add 13 to both sides;

9y ≤ 25

Divide both sides by 9;

y ≤ $\frac{25}{9}$

nekit [7.7K]3 years ago

5 0

Answer:

y =/> 25/9

Step-by-step explanation:

move variables to one side and non variables to the other side

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Answer:

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Step-by-step explanation:

Note that:

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Answer:

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4 years ago

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KatRina [158]

We begin with 1,000 fish in a lake.
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Then they put back 500 fish in the lake.

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3 years ago

PLEASE HELP: p(t)=1.8^t

Karo-lina-s [1.5K]

<h3>Initial amount = 1</h3><h3>Rate of growth = 80 %</h3><h3>The value is 18.9 when t = 5</h3>

<em><u>Solution:</u></em>

<em><u>The given exponential function is:</u></em>

$p(t) = 1.8^t$

<em><u>The exponential function is given as:</u></em>

$y = a(1+r)^t$

Where,

y is the future value

a is the initial value

r is the growth rate

t is the number of years

<em><u>Compare both the functions,</u></em>

a = 1

$1+r = 1.8\\\\r = 1.8 - 1\\\\r = 0.8$

Thus growth rate is:

$r = 0.8 = 0.8 \times 100 \% = 80 \%$ <em><u></u></em>

<em><u>Evaluate the function when t = 5</u></em>

Substitute t = 5 in given

$p(5) = 1.8^5\\\\p(5) = 18.89568 \approx 18.9$

Thus the value is 18.9 when t = 5

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