Write two addition sentences where the sum is zero. Describe the numbers.

Mathematics

2 answers:

Neko [114]3 years ago

6 0

0+0=0 0+0=0+0

They are all addition, and they are all 0, and since 0 equals nothing, the sum is equivalent to 0!

Paha777 [63]3 years ago

6 0

Answer:

1) 0+0=0

2) -7+7=0

Step-by-step explanation:

To Find :Write two addition sentences where the sum is zero.

Solution:

1) 0+0 = 0

Since we know that the sum of 0 and 0 is 0

So, the first addition sentence where the sum is zero. is 0+0=0

2)-7+7=0

Sum of numbers with equal values but opposite signs is 0 i.e. sum of of positive and negative integer with same value is 0.

So, the second addition sentence where the sum is zero is -7+7=0

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The number of points Marcus scored in different rounds of a computer board game is shown

shtirl [24]

Answer:

583

Step-by-step explanation:

The mean of a data set is the average of the data set. It can be found by adding up all of the values and then dividing by the total number of values added. In this case, one is given the mean, and one needs to find a missing value. Since there is a missing element, add one to the total number of values in the data set. The missing element is represented by the parameter (x). Set up an equation and solve:

$\frac{(236)+(342)+(328)+(352)+(352)+(306)+(317)+(x)}{8}=325\\$

Simplify,

$\frac{2233+x}{8}=352$

Inverse operations,

$2233+x=2816\\\\x = 583$

3 0

2 years ago

Read 2 more answers

Which system of equations is represented by the matrix below? 1 5 11 4 -6-3 A. y + 5x = 11 4y - 6x = -3 B. X+ 5y = 11 4x - 6y =

Vitek1552 [10]

Answer: Choice B

$x+5y = 11\\4x-6y = -3$

=====================================

Explanation:

The given matrix is

$\left[\begin{array}{cc|c}1&5&11\\4&-6&-3\end{array}\right]$

The numbers to the right of the vertical bar represent the values on the right hand side of each equation in the final answer.

The numbers to the left of the bar represent the x and y coefficients of the equations. The first number of any given row is the x coefficient. The second number is the y coefficient.

For instance, the first row has $\begin{array}{cc}1&5\end{array}$ to indicate the x coefficient is 1, and the y coefficient is 5. We end up with 1x+5y or simply x+5y. Putting everything together, the first equation would be x+5y = 11