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Liula [17]
3 years ago
5

The sum of two numbers is 15.

Mathematics
2 answers:
Blizzard [7]3 years ago
3 0

Answer:

7

Step-by-step explanation:

15-8=7 this is how you answer it

Nataliya [291]3 years ago
3 0

Answer:

11.5 and 3.5

Step-by-step explanation:

a+b=15

a-b=8

equating them we get,

2a=23

a=11.5

placing value of b in a-b=8

11.5-b=8

b=3.5

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Consider multiplying 26.2 by 16.43 what would a mathematician say the answer is
IgorC [24]

In mathematics multiplying decimals is just like multiplying a whole number and ignoring the decimals., then just put the decimals in the answer – it is how many decimals does the two numbers combined.

First step:

Line the numbers on the right and do not a line the decimal points

      26.2

×  16.43

Second Step:

Multiply the numbers starting on the right, just like multiplying a whole number and ignore the decimals.

       26.2

<span> ×  16.43</span>

         786

     1048

   1572

<span>+ 262   </span>

   430466

Third step: add the products

        26.2

<span> ×  16.43</span>

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     1048

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   430.466 is the mathematician’s answer.

8 0
3 years ago
Which of the following statements is the only<br> sentence that is error-free?
Ray Of Light [21]
I don’t really know what the answer is
5 0
2 years ago
Solve the following problem. Give the equation using x as the​ variable, and give the answer.
Vinil7 [7]

Answer:

A. 3x + (x+8) = -22 - 2x

Step-by-step explanation:

Let the number equal x.

Set up the first half of the equation.

The sum of three times the number and 8 more than the number can be written as:

3x + (x+8)

Sum means that you add the components.

Set up the second half of the equation.

The difference between -22 and twice the number can be written as:

-22 - 2x

Difference means subtraction, and because -22 is written first, that is the number that you subtract <em>from</em>.

If you set the halves of the equation equal, you get:

3x + (x+8) = -22 - 2x

Therefore, the answer is A.

5 0
2 years ago
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Nitella [24]

Answer:

#3: x is approximately 0.37, -5.37, #4: x is approximately 4.19, -1.19

Step-by-step explanation:

You can solve using the quadratic equation or by solving with the perfect square

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x is approximately 0.37, -5.37

6 0
2 years ago
What is the circumference of the circle shown below?
pshichka [43]

Answer:

A. 25.12 meters

..........

4 0
3 years ago
Read 2 more answers
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