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3 years ago

Jill sold half of her comic books then bought 16 more, she now has 36. With how many did she begin with? Break it down please

1 answer:

4 0

A: 40

Let’s do this problem backwards.

TOTAL BOOKS RN: 36

1)
“Jill... then bought 16 more...”

36 - 16 = 20

After subtracting that amount, we would end up with half of the books Jill DID NOT sell.

2)
2 • 20 = 40

At this point, we multiplied amount of books she had after she sold half of her comic books by the reciprocal of 1/2

And now you have your answer!

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F(x)=3x^2 how do I graph the function<br>

wariber [46]

Answer:

don't now

Step-by-step explanation:

i am sorry I don't know I am only there for points

7 0

2 years ago

Using the digits 0-9, no more than one time each, place a digit in a box to create an equation with a solution x= -1/2

Brums [2.3K]

Three equations are:

2x+1=6x+3

8x+6=2x+3

8x+4=2x+1

<u>Step-by-step explanation:</u>

Using the digits 0-9, no more than one time each, place a digit in a box to create an equation with a solution x= -1/2 . We need to Create three equations. Formula is below. __ x+ __=__ x+ __ . Let's find out:

2x+1=6x+3

Let's verify this :

⇒ $2x+1=6x+3$

⇒ $4x=-2$

⇒ $x=\frac{-1}{2}$

8x+6=2x+3

Let's verify this :

⇒ $8x+6=2x+3$

⇒ $6x=-3$

⇒ $x=\frac{-1}{2}$

8x+4=2x+1

Let's verify this :

⇒ $8x+4=2x+1$

⇒ $6x=-3$

⇒ $x=\frac{-1}{2}$

7 0

3 years ago

Axioms of Euclidean geometry?

vekshin1

Answer:

1. Things which are equal to the same thing are also equal to one another.

2. If equals be added to equals, the wholes are equal.

3. If equals be subtracted from equals, the remainders are equal.

4. Things which coincide with one another are equal to one another.

5. The whole is greater than the part.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

A bucket always contains two balls. Ball colors are red and blue. Each stage in a process consists of two steps: selection and r

KonstantinChe [14]

Answer:

Probability that the fifth ball selected is red = 0.705

Step-by-step explanation:

Let

$X_{n}$ = Number of red balls after the 4th turn

⇒ $X_{n}$ ∈ { 0, 1, 2 }

Then,

P = $\left[\begin{array}{ccc}0.8&0.2&0\\0.1&0.8&0.1\\0&0.2&0.8\end{array}\right]$

⇒ $P^{4} = \left[\begin{array}{ccc}0.487&0.435&0.776\\0.218&0.565&0.218\\0.776&0.435&0.487\end{array}\right]$

Now,

P(5th ball is red | $X_{0}$ = 2 ) = 0. $P^{4} _{20}$ + $\frac{1}{2}P^{4} _{21} + 1. P^{4} _{22}$

= $\frac{1}{2} (0.4352) + 1. (0.4872) = 0.2176 + 0.4872$

= 0.705

∴ we get

Probability that the fifth ball selected is red = 0.705

6 0

2 years ago

What is the equation of the graph?

ra1l [238]

The general shape is that of an exponential function. Since the horizontal asymptote is -3, it appears to be shifted down 3. The y-intercept is 1 unit above the horizontal asymptote, so it appears there has been no horizontal shift.

For x=1, the curve goes through a point 6 units above the horizontal asymptote. This suggests the equation is
y = 6^x - 3

4 0

2 years ago