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3 years ago

Write the product of 5/9 and 25 as a mixed number

Mathematics

2 answers:

Yuki888 [10]3 years ago

7 0

Answer:

13 8/9

Step-by-step explanation:

5/9 x 25

Multiply through

125/9

13 8/9

nataly862011 [7]3 years ago

4 0

Answer:

13 8/9

Step-by-step explanation:

25*(5/9) is equal to (25*5)/9

25*5 = 125 and 9 goes into 125 13 times with a remainder of 8

The solution would be:

13 8/9

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Step-by-step explanation:

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Royce drove 42 miles in 60 minutes. at this rate, how far will royce travel in 1 minute

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0.7 miles

Explanation:
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2 years ago

A flat rectangular piece of aluminum has a perimeter of 64 inches. The length is 8 inches longer than the width. Find the width.

denpristay [2]

Answer:

w = 12

Step-by-step explanation:

W=48/4

W=12 ANS. FOR THE WIDTH.

L=12+8=20 ANS. FOR THE LENGTH.

PROOF:

2*20+2*12=64

40+24=64

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7 0

3 years ago

A pond has 150 fish and the population decreases by 8% each day. How many days before there are 30 fish

nlexa [21]

Answer:

19 days

Step-by-step explanation:

Given

$a = 150$ --- initial

$r = 8\%$ -- rate

Required

Days when the fish gets to 30

The function is exponential and as such it follows;

$y = ab^x$

Where x represents the number of days and y the number of fishes

Because the fishes decreases;

$b = 1 - r$

So, we have:

$b = 1 - 8\%$

Express as decimal

$b = 1 - 0.08$

$b = 0.92$

In $y = ab^x$

$a =150$

$y = 30$

$b = 0.92$

So, we have:

$30 = 150 * 0.92^x$

Divide both sides by 150

$0.2 = 0.92^x$

Take log of both sides

$log(0.2) = log(0.92^x)$

Apply law of logarithm

$log(0.2) = x\ log(0.92)$

Make x the subject

$x = \frac{log(0.2)}{log(0.92)}$

$x = \frac{-0.6990}{-0.0362}$

$x = 19.309$

$x \approx 19$

<em>Hence, it takes approximately 19 days</em>

3 0

3 years ago