All categories

2 years ago

If Ill m, solve for x. (4x - 7) (7x-61) X =

Mathematics

1 answer:

Mars2501 [29]2 years ago

4 0

4x-7=7x-61
-7=3x-61
54=3x
Answer
X=18

You might be interested in

Factor the expression by taking out the GCF. 3x - 9x3

Sholpan [36]

Consider the expression $3x-9x^3.$ It consists of two terms:

$3x=3\cdot x$

and

$-9x^3=-3\cdot 3\cdot x\cdot x\cdot x.$

The common factors in these terms are $3$ and $x.$ Then

$GCF(3x,-9x^3)=3x.$

Taking out the GCF, you obtain

$3x-9x^3=3x(1-3x^2).$

Answer: correct choice is B.

4 0

3 years ago

-2(x+3y)=18 solve for y!

jeka94

$-2(x+3y)=18\ \ \ \ /:(-2)\\\\x+3y=9\\\\3y=9-x\ \ \ \ /:3\\\\y=\frac{9-x}{3}\\\\y=\frac{9}{3}-\frac{x}{3}\\\\y=3-\frac{1}{3}x\\\\y=-\frac{1}{3}x+3$

6 0

3 years ago

Read 2 more answers

Solve 1/2x - 12 = 12

cluponka [151]

Answer:

x = 28.

Step-by-step explanation:

1/2x - 12 = 12

Add 12 to both sides:

1/2x - 12 + 12 = 12 + 12

1/2x = 24

Now, to isolate x we multiply both sides by 2:

1.2 x * 2 = 24 * 2

x = 48.

6 0

3 years ago

What are these numbers from least to greatest? 5.78, -5.9, 58%, -23/4

Feliz [49]

Answer:

-5.9, -23/4, 58%, 5.78

7 0

3 years ago

Read 2 more answers

The Magic Dragon has 2013 heads. Leo the Brave is cutting off the Dragon's heads at a speed of 5 heads per minute. The Dragon's

aivan3 [116]

Answer: The answer is 1833 heads and 11 hours, 11 minutes.

Step-by-step explanation: Given that the Magic Dragon has 2013 heads. The brave Leo is cutting off the Dragon's heads at a speed of 5 heads per minute. But, the Dragon's heads are growing back at a speed of 2 heads per minute.

So, the number of heads of Dragon that are decreasing per minute = 3.

Therefore, after 1 hour, i.e., 60 minutes, The number of heads of the Dragon

= 2013 - 60 × 3 = 2013 - 180 = 1833 heads.

Now, the fight will last until all the heads of the Dragon are cut. Let the fight lasts for 'x' minutes, then

$2013-x\times 3=0\\\\\Rightarrow 3x=2013\\\\\Rightarrow x=\dfrac{2013}{3}=671.$

Hence the fight lasts for 671 minutes, i.e., 11 hours and 11 minutes.

Thus, the Dragon will have 1833 heads after 1 hour and the fight will last for 11 hour and 11 minutes.

3 0

3 years ago