All categories

3 years ago

Evaluate 2/3x + 1/2 for x=3/4 (I just copied the exact question)

Mathematics

1 answer:

Travka [436]3 years ago

6 0

Answer:

Step-by-step explanation:

(⅔)(¾) + ½

½ + ½

= 1

You might be interested in

Tomatoes that regularly sell for $0.65 per pound are on sale for 20% off the regular price. What is the sale price?

andreyandreev [35.5K]

The sale price is 0.13

5 0

3 years ago

What is the difference? StartFraction x Over x squared minus 16 EndFraction minus StartFraction 3 Over x minus 4 EndFraction Sta

katovenus [111]

Answer:

The option "StartFraction negative 2 (x + 6) Over (x + 4) (x minus 4) EndFraction" is correct

That is $\frac{-2(x+6)}{(x+4)(x-4)}$

Therefore $\frac{x}{x^2-16}-\frac{3}{x-4}=\frac{-2(x+6)}{(x+4)(x-4)}$

Step-by-step explanation:

Given problem is StartFraction x Over x squared minus 16 EndFraction minus StartFraction 3 Over x minus 4 EndFraction

It can be written as below :

$\frac{x}{x^2-16}-\frac{3}{x-4}$

To solve the given expression

$\frac{x}{x^2-16}-\frac{3}{x-4}$

$=\frac{x}{x^2-4^2}-\frac{3}{x-4}$

$=\frac{x}{(x+4)(x-4)}-\frac{3}{x-4}$ ( using the property $a^2-b^2=(a+b)(a-b)$ )

$=\frac{x-3(x+4)}{(x+4)(x-4)}$

$=\frac{x-3x-12}{(x+4)(x-4)}$ ( by using distributive property )

$=\frac{-2x-12}{(x+4)(x-4)}$

$=\frac{-2(x+6)}{(x+4)(x-4)}$

$\frac{x}{x^2-16}-\frac{3}{x-4}=\frac{-2(x+6)}{(x+4)(x-4)}$

Therefore $\frac{x}{x^2-16}-\frac{3}{x-4}=\frac{-2(x+6)}{(x+4)(x-4)}$

Therefore the option "StartFraction negative 2 (x + 6) Over (x + 4) (x minus 4) EndFraction" is correct

That is $\frac{-2(x+6)}{(x+4)(x-4)}$

5 0

4 years ago

Read 2 more answers

What can you say about the 3's in the number 43,335

kolbaska11 [484]

I assume it's 43 thousand and 335, not 43 point 335.

The first 3 from the right is for tens, the second is 10 times stronger because it's for hundreds and the fourth is again 10 times stronger because it's for thousands. Hopefully that's what you meant :)

5 0

3 years ago

Which fractions are equal to 2/3 choose ALL the correct answers. 6/7, 5/6, 8/12, 4/5, 4/6

Mandarinka [93]

Answer:

8/12,4/6

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

2x - 5y = 5 and y = x + 2

Dafna1 [17]