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Svet_ta [14]
3 years ago
12

When sandra walk through the house she saw that 18 lights are on and only one third of the lights were off how many lights were

off?

Mathematics
1 answer:
vovangra [49]3 years ago
4 0
Don't mind the length I used. It's just so you understand the answer clearly. Once you know how to do it, you will be able to do it in seconds.

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Write the ratio as a fraction in simplest form. 27 to 72
Mademuasel [1]

Answer: The ration for 27:71, would be 3/8. Hope this helps!

4 0
3 years ago
Can someone give me the value of x
Diano4ka-milaya [45]

The shape has 7 sides.

The sum of the interior angles is (7-2)180 = 5 * 180 = 900 degrees.

Divide the total sum by 7:

X = 900 /7 = 128.6 degrees.

7 0
3 years ago
Solve -2(2x+5) -3(x-1)
OLEGan [10]
<h2>Hello!</h2>

The answer is:

-2(2x+5)-3(x-1)=-7x-7\\

<h2>Why?</h2>

To solve the problem, we need to perform the operations and then, add like terms.

We need to apply the distributive property, which is defined by the following way:

a(b+c)=ab+ac

Also, we need to remember how to add like terms. Like terms are terms that share the same exponent and the same variable, for example:

3x+5x+x^{2}=8x+x^{2}

We were able to add only the first two terms since they are like terms, both are sharing the same exponent and the same variable.

So, we are given the expression:

-2(2x+5)-3(x-1)

Then, solving we have:

-2(2x+5)-3(x-1)=-4x-10-(3x-3)\\\\-4x-10-(3x-3)=-4x-10-3x+3\\\\-4x-10-3x+3=-4x-3x-10+3\\\\-4x-3x-10+3=-7x-7

Hence, we have that the answer is:

-2(2x+5)-3(x-1)=-7x-7\\

Have a nice day!

8 0
3 years ago
What is the answer to m2=91
Rzqust [24]
The answer to m2=91 is 40.5
3 0
3 years ago
At a raffle, 1500 tickets are sold for $2 each for four prizes of $500, $250, $150, and $75. You buy one ticket. What is the exp
Kisachek [45]
To find the expected value of your gain in each prize, subtract the price of the ticket from the prize:

If the prize is $500: $500 - $2 = $498
If the prize is $250:  $250 - $2 = 248
If the prize is $160: $160 - $2 = $73

But if you did not win any cash prize, you do not have any gain because
0 cash prize - $2 ticket = -$2 which is a loss
5 0
3 years ago
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