Simplify these expresions pls<br><br>1. 2(3+d-1) <br>2. 5(k+4)-2k

Angelina_Jolie [31]

240 because 2000x0.04=80 X3= 240

5 0

3 years ago

ryzh [129]

X=25

4x-10=90
Add 10 to both sides
4x=100
Divide both sides by 4

6 0

3 years ago

In-s [12.5K]

Answer: 3 : 2

Step-by-step explanation:

Let A represents the total population of country A and B represents the total population of country B.

According to the question,

$\text{The population of country A that admit they are from B} = \frac{1}{3}\text{ of }A$

⇒ $\text{ The population of A that admit they are from country A }= A - \frac{1}{3} \text{ of } A$

$= \frac{3-1}{3} A$

$= \frac{2}{3} A$

$\text{The population of country B that admit they are from A} = \frac{1}{4}\text{ of }B$

⇒ $\text{ The total population that claims that they are from A }= \frac{2}{3} A +\frac{1}{4} B$

But, Again according to the question,

The total population that claims that they are from A = one half of the total population of A and B.

⇒ $\frac{2}{3} A + \frac{1}{4} B= \frac{1}{2}(A+B)$

⇒ $\frac{2}{3} A + \frac{1}{4} B= \frac{1}{2}A+\frac{1}{2}B$

⇒ $\frac{2}{3} A - \frac{1}{2}A= \frac{1}{2}B-\frac{1}{4} B$

⇒ $\frac{4}{6} A - \frac{3}{6}A= \frac{2}{4}B-\frac{1}{4} B$

⇒ $\frac{1}{6} A = \frac{1}{4} B$

⇒ $A =\frac{6}{4}B$

⇒ $\frac{A}{B} =\frac{3}{2}$

8 0

3 years ago

sammy [17]

What? What work is supposed to be shown? That’s more like a statement

5 0

3 years ago

klio [65]

The answer to this is 3 bc 47*2=94
100-94=6
6/2=3

3 0

3 years ago

Simplify these expresions pls1. 2(3+d-1) 2. 5(k+4)-2k​