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Sophie [7]
3 years ago
7

What is adding and subtracting decimals

Mathematics
2 answers:
alekssr [168]3 years ago
8 0

Adding and subtracting decimals are easy to understand you are just adding a decimal point

For example, 2 plus 2 equals 4

2.0 plus 2.0 equals 4.0

Marta_Voda [28]3 years ago
7 0
.01 + .01 = .02

.01 - .01 = .00
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Tell whether the triangle is a right triangle.<br><br> Please help
schepotkina [342]
Pythagorean Theorem:
a^2 + b^2 = c^2
10. 144 + 196 = 340
Yes, it is a right triangle

11. 256 + 361 does not equal 684 so it is not a right triangle
4 0
3 years ago
7. Which expression is the exponential form of 3√m
borishaifa [10]
Rewrite the rational (fraction) exponents using the formula ^n<span>√a^x= a x/n

3m 1/2 </span>
7 0
4 years ago
Read 2 more answers
find three consecutive odd integers such that the sum of the smallest number and middle number is 27 less than 3 times the large
katrin2010 [14]

A generic odd number can be written as

2k+1,\quad k \in \mathbb{Z}

Since there is an odd number every two numbers, three consecutive odd numbers will be

2k+1,\quad 2k+3,\quad 2k+5

Now let's make up the equations: the sum of the first two is

(2k+1)+(2k+3)

And 27 less than 3 times the largest is

3(2k+5)-27

These two must be the same, so we have

(2k+1)+(2k+3)=3(2k+5)-27 \iff 4k+4 = 6k+30-27 \iff 4k+4=6k+3

Subtracting 4k and 3 from both sides gives

1=2k \iff k=\dfrac{1}{2}

Which means that the problem has no solution.

To confirm this hypothesis, we can observe that, on the left hand side, we have the sum of two odd numbers, which is even

On the right hand side, we have an odd number, multiplied by 3 (still odd), take away 27 (still odd).

So, the left hand side is even, and the right hand side is odd. They can't be the same number.

7 0
4 years ago
4.8 + 2.2w − 1.4w + 2.4
Lostsunrise [7]

Answer:

7.2 + 0.8w

Step-by-step explanation:

combine like terms. Like terms have same variable with same power.

2.2w and (-1.4w) are like terms & 4.8 and 2.4 are like terms.

4.8 + 2.2w - 1.4w + 2.4 = 4.8 + 2.4 + 2.2w - 1.4w

                                      = 7.2 + 0.8w

5 0
3 years ago
Read 2 more answers
Please help answer!!!! <br> will try and give brainliest if i can.<br> need all four answers!
Ivahew [28]

Answer:

a is option c

b is 17.5

c is 9

Step-by-step explanation:

I do not know if all of these are right

6 0
3 years ago
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