What dose this equation equal ? -8x+4+(-3)=?
2 answers:
You might be interested in
The larger number is 576, the smaller number is 170.
Let x = the larger number and y = the smaller number.
We know that the larger number is 406 larger than the smaller one; therefore
x = y + 406
We also know
Substituting for x we have:
When we convert mixed numbers to improper fractions, we multiply the whole number by the denominator and add the numerator:
Since the denominators are the same, we can just set the numerators equal
y+406=3y+66
We cannot have a variable on both sides, so we will subtract y from both sides:
y+406-y=3y+66-y
406=2y+66
Subtract 66 from both sides:
406-66=2y+66-66
340=2y
Divide both sides by 2:
340/2 = 2y/2
170=y
The smaller number is 170. Since the larger number is 406 larger, then it is 170+406=576.
Let x = the larger number and y = the smaller number.
We know that the larger number is 406 larger than the smaller one; therefore
x = y + 406
We also know
Substituting for x we have:
When we convert mixed numbers to improper fractions, we multiply the whole number by the denominator and add the numerator:
Since the denominators are the same, we can just set the numerators equal
y+406=3y+66
We cannot have a variable on both sides, so we will subtract y from both sides:
y+406-y=3y+66-y
406=2y+66
Subtract 66 from both sides:
406-66=2y+66-66
340=2y
Divide both sides by 2:
340/2 = 2y/2
170=y
The smaller number is 170. Since the larger number is 406 larger, then it is 170+406=576.
Answer:
Rotational symmetry of 180° about the origin: Yes.
Rotational symmetry of 270° about the origin: No.
Explanation:
A figure is a rotationally symmetrical if it look the same after a given turn.
We have to analyze if the parallelogram has rotational symmetry of 180° or 270°. picture the figure rotating a given amount of degrees to see if it looks the same or not.
180 degree rotation:
We can see that the figure looks the same after a 180° rotation.
270 degree rotation:
We can see that the figure does not look the same after a 270° rotation.
So the answer will be:
Rotational symmetry of 180° about the origin: Yes.
Rotational symmetry of 270° about the origin: No.
