45/51 is 15/17 simplified.
First you divide 45 and 51 by 3 because 3 is the greates common factor. 45 divided by 3 is 15 and 51 divided by 3 is 17 so simplified it is 15/17.
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Answer:
799/800
Step-by-step explanation:
800/800 - 1/800 = 799/800
Answer:
12. 5(5x+4)(5x-4)
13. 2(4v+5)(4v-5)
14. 5(3x+2)(3x-2)
Step-by-step explanation:
Answer:
x ≥ 7
Step-by-step explanation:
First, put the same terms on the same side. So subtract 5 from both sides. You will get:
-3x ≤ -21
Divide both sides by -3 to get x alone. When dividing, the inequality sign will change to the opposite. So it will go from a (less than or equal to) sign to a (greater than or equal to) sign.
You will get:
x ≥ 7
Therefore, x will be a number that is greater than or equal to 7.
Here we have to find sum of -1000 and 1000.
The two numbers are equal and opposite in sign.
While adding a positive and a negative , we have to subtract.
so subtracting 1000 -1000, the answer is 0.
Another concept is when we add a number and its negative, we use this property,
a + (-a) =0
For example 2+(-2) = 2-2 =0
Similarly 1000 + (-1000) = 1000-1000 =0
This explains the concept .