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iragen [17]
3 years ago
15

the probability that a house in an urban area will develop a leak is 4​%. If 27 houses are randomly​ selected, what is the proba

bility that none of the houses will develop a​ leak? Round to the nearest thousandth.
Mathematics
1 answer:
IgorLugansk [536]3 years ago
5 0
ANSWER: p( X=0)

hope this helps have a great day!!
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What is the absolute value of –38? <br><br> A. 19<br> B. –19<br> C. 38<br> D. –38
GREYUIT [131]

<u>Answer</u>

C. 38


<u>Explanation</u>

The absolute value of any digit is the magnitude or its size. The negative side is not considered.

It can also be defined as the actual magnitude of a numerical value or measurement, irrespective of its relation to other values.

It is represented as; /x/.

The absolute value of -38 is /-38/.

∴ /-38/ = 38


6 0
3 years ago
56 is 70% of what number
QveST [7]
56=70% of __
56/0.7=80
56 is 70% of 80.

Hope I helped!
5 0
3 years ago
A scale model of a building is 8 inches tall. The actual building is 120 feet tall. What is the scale factor of the model? (1ft.
PIT_PIT [208]

Answer:

1:180

Step-by-step explanation:

We start by multiplying the 120 feet by 12 inches to get the height of the building in inches, which is 1440.

Then, we have a ratio of 8:1440, which simplifies to 1:180 when we divide 1440 by 8.

7 0
3 years ago
Carly has 2 more nickels than dimes in her pocket. She has 40 cents. How many nickels does Carly have How many dimes does Carly
irga5000 [103]
She has 2 dimes and 4 nickels.
Knowing dimes equal 10 cents, if you have 1 dime and 3 nickels, you’d have 20 cents, 2 dimes and 4 nickels you’d have 40 cents. You have to have two more nickels than dimes.
8 0
3 years ago
Read 2 more answers
Can someone plz help me w/ number 3 with shown work
weeeeeb [17]

Answer:

x = 1

y = -3

Step-by-step explanation:

We have the value of <em>x</em> in terms of <em>y</em> already, so our first step will be to plug in <em>y + 4</em> for <em>x</em> in the first equation. This gives us:

y + 4 = 2y + 7

From here, we can just solve for <em>y</em>:

y + 4 = 2y + 7\\4 = y + 7\\-3 = y

And now that we know <em>y = -3</em>, we can solve for <em>x</em> using the second equation:

x = y + 4\\x = -3 + 4\\x = 1

Lastly, we should just double check our answers using the first equation to see if they work:

1 = 2 * -3 + 7\\1 = -6 + 7\\1 = 1

It does!

8 0
3 years ago
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