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seropon [69]
4 years ago
6

What's the property that justifies my 1st step?

Mathematics
1 answer:
rusak2 [61]4 years ago
8 0
Substraction is a comutative operation 
x + 3x + 4 = 72
4x + 4 = 72
4x = 68
x = 68 / 4
x = 17.
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3 years ago
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Svetradugi [14.3K]
What diagram can you add a picture

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4 years ago
Please help :) what is the area of the triangle
Flura [38]

Answer:

30  units ^2

Step-by-step explanation:

The area of a triangle is

A = 1/2 bh

The base is on the left  b = 10  

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4 0
4 years ago
What is the sum of 3 consecutive integers of 87
Leviafan [203]
Hey there! Hello!

So, to set this problem up, all you need to do is imagine that the smallest number of these consecutive integers is x. The next two numbers will be x+1, then x+2, and that, altogether, will equal 87. In a problem, this will look like this:

x+x+1+x+2=87

All we need to do is solve for x! We can simplify the problem by combining like terms:

x+x+x+1+2=3x+3=87
3x+3-3=87-3
3x/3=84/3
x=28

Now that we know what x is, we can plug it into our original problem:

x+x+1+x+2 = 28+29+30=87

Hope this helped you out! Feel free to ask me any additional questions if you need further clarification. :-)
3 0
3 years ago
Bill makes four payments a year of $128.25 for life insurance; four payments of $161.82 for real estate taxes; twenty-four payme
USPshnik [31]
128.25 × 4 = 513
162.82 × 4 = 651.28
37.46 × 24 = 899.04
221.65 × 6 = 1329.9
So add them all up.
3393.22
8 0
3 years ago
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