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2 years ago

Is x = 3 a solution to the equation x + 7 = 11?

Mathematics

2 answers:

sineoko [7]2 years ago

7 0

Answer:

The correct answer is A. No, because 3 + 7 = 11 is not true.

Step-by-step explanation:

Just like the answer says, if x =3, then that would mean that 3 + 7 = 11. Since

3 + 7 =10, this statement is not true.

Therefore, the correct answer is A.

Hope this helps! :D

olya-2409 [2.1K]2 years ago

3 0

Answer:

Step-by-step explanation:

3+7 is 10, not 11. Therefore, x cannot be 3.

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When using fraction strips how do you know that to fractions are equivalent

mafiozo [28]

You basically would use how long they are. If you had a strip of 1/2 and a strip of 3/4... with blocks they wouldn't be the same length. The 3/4 blocks would be greater.

However if you matched a 1/2 strip with a 3/6 strip, you can see that they are the same length and are equivalent.

Of course their is a way to do it mathematically but let me know if you want to see that.

3 0

3 years ago

Given 4 coordinate points â€” A(2, 0), B(4, 0), C(5, â€“2), D(1, â€“2) â€" identify the figure showing a

babymother [125]

Answer:

Option B

Step-by-step explanation:

First we would identify the coordinates of the points before they are rotated.

A(2, 0), B(4, 0), C(5, -2), D(1, -2)

Plot a graph with the coordinates.

We find that the figure appears in the fourth quadrant.

Find attached the diagram.

To rotate the figure obtained by 180° about the origin zero, we would change the signs of the coordinates to become opposite.

That is positive sign becomes negative and vice versa:

A(-2, 0), B(-4, 0), C(-5, 2), D(-1, 2)

This implies that we rotated the figure 90° twice. When this is done, the figure would appear in second quadrant.

Plotting the new coordinates on a graph would give option B.

8 0

2 years ago

Which set of expressions represents three consecutive integers?

Svetlanka [38]

D, as it increases by one

4 0

2 years ago

Find the sum of the zeros in the following equation: (2x-1)(x+8)(2x-4)(x-1)

lara [203]

Answer:

$-9\frac{1}{2}$

Step-by-step explanation:

$2x+1=0$

$2x=-1$

$x=-\frac{1}{2}$

$x+8=0$

$x=-8$

$2x-4=0$

$2x=4$

$x=2$

$x-1=0$

$x=1$

$1+2-8-\frac{1}{2}$

$=-1-8\frac{1}{2}$

$=-9\frac{1}{2}$

Sum of fractions $=-9\frac{1}{2}$

5 0

2 years ago

Find the number, 112/ 100 of it is 56

Alinara [238K]

First let that number be y.
List the equation by the given info.
y x 112/100 = 56
Shift y to the other side by turning it to ÷y.
112/100 = 56/y
Use cross method,
100 x 56 = 112y
5600 = 112y
y = 50
Therefore that number is 50

6 0

2 years ago