All categories

3 years ago

How do you solve this algebreically? 3/8=x/20

Mathematics

1 answer:

Llana [10]3 years ago

6 0

Answer:

7.5

Step-by-step explanation:

3/8 = x/20

3(20) = 8x

8x = 60

x = 60/8

x = 7.5

You might be interested in

If 2a - b = 4 , find a.

julia-pushkina [17]

<h2>Answer: a = ¹/₂ (4 + b)</h2>

<h3>Step-by-step explanation:</h3>

To solve for 'a' we have to make it the subject of the equation. Since there are two unknowns ('a' & 'b'), we won't get a numerical value of 'a', but an expression in terms of the second unknown 'b'.

Since 2a - b = 4 <em> [add 'b' to both sides]</em>

then 2a = 4 + b <em>[divide both sides by 2 = multiplying by ¹/₂]</em>

a = ¹/₂ (4 + b)

3 0

3 years ago

14. Triangle QRS is shown below.

kifflom [539]

Ummm you tell me lol

4 0

3 years ago

Read 2 more answers

PLEASE HELP 11 POINTS FOR THE CORRECT ANSWER

Nady [450]

Answer:

$\sqrt{43}$

Step-by-step explanation:

3 0

2 years ago

Every rational number is a

nordsb [41]

<em>Greetings from Brasil...</em>

a - whole number

FALSE

3/5, for example isnt a whole number

b. natural number

FALSE

0,457888..., for example isnt a natural number

c. integer

FALSE - like a

d. real number

TRUE

The set of real numbers contains the set of rational numbers

ℝ ⊃ ℚ

8 0

3 years ago

Consider the table for the exponential function, LaTeX: p\left(x\right)=2^xp ( x ) = 2 x, shown below. Calculate the Average Rat

Mice21 [21]

Answer:

Step-by-step explanation:

To find the average rate if change of the exponential function between the interval [2, 6], use the formula, $m = \frac{p(b) - p(a)}{b - a}$

Where,

$a = 2, p(2) = 4$

$b = 6, p(6) = 64$

Plug in the above values into the formula:

$m = \frac{64 - 4}{6 - 2}$

$m = \frac{60}{4}$

$m = 15$

Average rate of change is 15

3 0

3 years ago