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larisa [96]
3 years ago
13

Find the sum of 18 + (-15). A. 3 B. -3 C. 33 D. -33

Mathematics
1 answer:
Delvig [45]3 years ago
6 0

Answer: 3

Step-by-step explanation: To find the sum of these two numbers, remember that adding a negative is exactly the same thing as subtracting a positive. In other words, when we see 18 + (-15), we can change the problem so it's easier to understand and we will change in to 18 - 15.

Now, this is just basic subtraction.

18 - 15 = 3

Therefore, 18 + (-15) = 3

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charle [14.2K]

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4 What is the number if 61 is 3 less than 8 times the number?
Mrrafil [7]

If 61 is less than 8 times the number then the number is 8.

Given 61 is 3 less than 8 times the number.

Let the number be 'x'.

The term "polynomial" in mathematics refers to a mathematical statement that consists of two or more algebraic terms that are added, subtracted, or multiplied (no division!). Constants and positive exponents are frequently used, together with at least one variable, in polynomial formulas.

we can write the equation as:

8x ₋₋ 3 = 61

arranging the like terms i.e constants.

8x = 61 ₊ 3

8x = 64

to find the value of x, divide 64 by 8.

x = 64 ÷ 8

x = 8

hence the number we get after solving the equation is 8.

Learn more about Polynomials here:

brainly.com/question/1487158

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8 0
1 year ago
In 2005, the total waste generated in a certain country was 4.033 x 10^9 pounds. Also in 2005, the country's population was 2.05
lakkis [162]

Answer:

\frac{Garbage}{People} =\frac{4.033x10^{9} pounds}{2.05 x10^{7} people}

And after operate we got:

196.73 \frac{pounds}{people}

So then the gragbe per capita on this was would be 196.73 \frac{pounds}{people}

Step-by-step explanation:

For this case we know the following info:

Total waste generated for a certain country in 2005 : 4.033x10^9 pounds

Total population for this country in 2005 2.05x10^7 people

And we want to estimate the garbage per capita or per person for 2005, and we can use the following formula:

\frac{Garbage}{People} =\frac{4.033x10^{9} pounds}{2.05 x10^{7} people}

And after operate we got:

196.73 \frac{pounds}{people}

So then the gragbe per capita on this was would be 196.73 \frac{pounds}{people}

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3 years ago
A line has a slope of -4/5 . Which ordered pairs could be points on a line that is perpendicular to this line? Check all that ap
attashe74 [19]
I hope this helps you

3 0
3 years ago
Read 2 more answers
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