**Answer:**

height is vol divided by cross sectional area

**Step-by-step explanation:**

height = 216/48

4.5cm if the height.

mark me brainliest

First, you will want to get the denominators of both fractions to be the same, the easiest way to do this is by multiplying the denominators, so **5 x 7 = 35**

next you need to do the same for the numerators, so **2 x 7 = 14** and **2 x 5 = 10**

now you have the equation **14/35 + 10/35 **

next, you add the numerators. so, **14 + 10 = 24**

therefor, **2/5 + 2/7 =24/35**

so your answer is **24/35**

**Answer:**

1.6

**Step-by-step explanation:**

7 and three tenths = 7 + 3/10 = 7.3

5 and seven tenths = 5 + 7/10 = 5.7

7.3-5.7 = 1.6 or can be written as 1 and six tenths, or 1 and three fifths.

**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 :

⇒

⇒

⇒

**8x+6=2x+3**

Let's verify this :

⇒

⇒

⇒

**8x+4=2x+1**

Let's verify this :

⇒

⇒

⇒

Since x = 3, plus 3 into x and you should get f(3) = 6(3) which is equal to the answer 18.