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4 years ago

105.6 + (-95.3) ! help me show my work !

Mathematics

1 answer:

Juli2301 [7.4K]4 years ago

4 0

Answer:

10.3

Step-by-step explanation:

105.6-95.3=10.3

When adding with a number and a negative, you can change the problem to a subtraction problem!!! If the negative is more than the positive, the number will become negative too!!! P.S. Please mark me Brainlist.

Thank you!!!

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3 divided by 1107 show work.

Bingel [31]

Answer:

$369\\ 3*369=1107\\ 1107-1107=0\\\\ 369\\ Remainder=0$

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2 years ago

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The sum of digits in a two digit number formed by two digits from 1 to 9 is 8. If 9 is added to a number then both the digits be

Arturiano [62]

<h2>Explanation:</h2><h2></h2>

Here we need to set a system of two linear equations in two variables. So:

<em>The sum of digits in a two digit number formed by two digits from 1 to 9 is 8:</em>

Let $x \ and \ y$ be those digits, then:

$x+y=8 \ \ldots eq1$

<em>If 9 is added to a number then both the digits become equal. find the number:</em>

<em />

<em /> $10x+y+9 \ldots expression \ 1$ <em />

<em />

But from eq 1:

$y=8-x$

Substituting y into the expression 1:

$10x+(8-x)+9=9x+17$

The x-value will be found by hit and trial, so:

Let x = 1:

$9x + 17 = 9(1)+17 = 26$

We have to reject this solution because digits are different.

Let x = 2:

$9x + 17 = 9(2)+17 = 35$

We have to reject this solution because digits are different.

Let x = 3:

$9x + 17 = 9(3)+17 = 44$

<em>Then this is a two digit number formed by two equal digits. </em>

Finally, the number is:

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3 years ago

Calculate the value of x.

mars1129 [50]

Answer:

49.2°

Step-by-step explanation:

To solve for x you'll need to find the cosine of x°.

To find the cosine you will need to divide the adjacent side to it by the hypotenuse.

cos x°= $\frac{17}{26}$

Using a calculator to solve you'll get that x ≈ 49.2°

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3 years ago

Does the graph represent a function?

Harrizon [31]

Answer:

The graph does represent a function because it passes the vertical line test!

Step-by-step explanation:

A vertical line test means if you put a vertical line over any area on the graph it shouldn't hit the line more than once :)

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3 years ago

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An example of consecutive odd integers is 23, 25, 27, and 29. Find four consecutive odd integers with a sum of 160. Show your wo

Andrew [12]

Step1: Define an odd integer.
Define the first odd integer as (2n + 1), for n = 0,1,2, ...,
Note that n is an integer that takes values 0,1,2, and so no.

Step 2: Create four consecutive odd integers.
Multiplying n by 2 guarantees that 2n will be zero or an even number.
Therefore (2n + 1) is guaranteed to be an odd number.
By adding 2 to the odd integer (2n+1), the next number (2n+3) will also be an odd integer.

Let the four consecutive odd integers be
2n+1, 2n +3, 2n +5, 2n +7

Step 3: require that the four consecutive integers sum to 160.
Because the sum of the four consecutive odd integers is 160, therefore
2n+1 + 2n+3 + 2n+5 + 2n +7 = 160
8n + 16 = 160
8n = 144
n = 18

Because 2n = 36, the four consecutive odd integers are 37, 39, 41, 43.

Answer: 37,39,41,43

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3 years ago