All categories

2 years ago

8 was dividedby some numberthen added to13.next this difference was multiplied by 2 which gave a product of 30 find the answer

1 answer:

3 0

The answer is 4.

8/x +13 = y --------> y * 2 = 30

divide 2 on both sides so y = 15

8/x + 13 = 15
- 13 - 13

8/x = 2

x =4

You might be interested in

Arabella's password consists of 1 letter followed by two digits. What is the probability of correctly guessing Arabella's passwo

Alchen [17]

The answer is 1/2600

Hope this helps

6 0

2 years ago

How to convert 4.5 into a decimal

zepelin [54]

Answer:

do you mean a fraction? if so..

Step-by-step explanation:

Every number in decimal form, in which either decimals terminate or certain numbers after decimal point continue to repeat endlessly, can be written as a fraction. As the given number 4.5 terminates after first deciimal it can be written as fraction. Here we have 4.5=4510= 9/2

which as a fraction means 4 and because you have 1 left over from the 9 its 4 1/2 or 4.5 :)

4 0

2 years ago

The vertex of the parabola below is at the point (2, 4), and the point (3, 6) is on the parabola. what is the equation of the pa

Paraphin [41]

Given:

Vertex ===> (h, k) (2, 4)

The parabola passes through the point: (x, y) ==> (3, 6)

Let's find the equation of a parabola.

To find the equation, use the general equation of a parabola with vertex (h, k):

$y=a(x-h)^2+k_{}$

Where:

(h, k) ==> (2, 4)

(x, y) ==> (3, 6)

Substitute values into the general equation:

$\begin{gathered} 6=a(3-2)^2+4 \\ \\ 6=a(1)^2+4 \\ \\ 6=a+4 \end{gathered}$

Subtract 4 from both sides:

$\begin{gathered} 6-4=a+4-4 \\ \\ 2=a \\ \\ a=2 \end{gathered}$

Substitute 2 for a, and input the values of the vertex (h, k) in the general vertex equation:

$y=2(x-2)^2+4$

Therefore, the equation of the parabola is:

$y=2(x-2)^2+4$

ANSWER:

$y=2(x-2)^2+4$

3 0

9 months ago

Use factor trees to find the GCF of 32, 24, and 40.

Lana71 [14]

GCF 32 24    40
^ ^   ^
  2 16 2 12    2 20
^    ^ ^
   2 8 2 6    2 10
   ^ ^ ^
   2 4 2 3    2 5
^
   2 2

(2) (2 & 3) (2 & 5)

8 0

2 years ago

Before you factor you should check what two things?

Sergeeva-Olga [200]

You can check your factoring by multiplying them all out to see if you get the original expression. If you do, your factoring is correct; otherwise, you might want to try again

7 0

2 years ago

Read 2 more answers