A number is divided by 2. If 16 is added to the quotient you get 20. What is the number? A.2 B.8 C.18 D.72

Mathematics

2 answers:

kkurt [141]4 years ago

7 0

That would be 8. To see the answer, we reverse the operations- 20-16=4. 4 x 2 = 8.

Whitepunk [10]4 years ago

4 0

Answer:

Step-by-step explanation:

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3 years ago

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What is the converse of the following statement? If a number is odd, it is not divisible by two.

tensa zangetsu [6.8K]

Converse in discrete mathematics is switching the hypothesis and conclusion of a conditional statement.

So the correct answer will be that If a number is not divisible by two, then it is an odd number. Which is option D.

The math converse of a statement switches the if and then, resulting in a statement that may or may not be true so we have no guarantee that the preposition is true or not.

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3 years ago

What is the answer for part b

trasher [3.6K]

Answer:

(-3,-10)

Step-by-step explanation:

Given part a, you seem to know the midpoint formula. We can easily edit that to figure out what an endpoint is. Say that a variable "a" represents the x coordinate of D, and b the y coordinate. As the x coordinate of M is 0.5, and the x coordinate of C is 2, we can use the midpoint formula to say that $\frac{a+2}{2} =-0.5$ . Multiplying both side by 2, we get that a+2=-1, and subtracting both sides by 2, a=-3. Similarly, $\frac{b+7}{2} =-1.5$ , b+7=-3, and b=-10, making our answer (-3, -10). Let me know if you have any questions.