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4 years ago

Solve for x. x*3 = −216 Enter your answer in the box.

Mathematics

2 answers:

Nikolay [14]4 years ago

7 0

Answer:

-72

Step-by-step explanation:

Divide by 3 on both sides (x and -216) and you get x= -72. It's negative because the three is positive and the product is negative, so x must be negative.

My name is Ann [436]4 years ago

5 0

Answer:

-72

Step-by-step explanation:

-72 times 3=-216

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Please help........................................

Drupady [299]

Solve the equation for both -1 and 1 first.

50(1/2)^-1 = 100

50(1/2)^1 = 25

Now subtract the two answers and divide by 2 ( -1 to 1 is 2)

75/2 = 37.5

Because the answer got smaller from -1 to 1, the change would be negative.

The rate of change would be -37.5

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3 years ago

Ratios equivalent to 2:6.

Alexandra [31]

8:24
4:12
100:300

All you have to do is multiply both sides by the same number to get an equivalent ratio.

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3 years ago

What is the true solution to the equation below?

Naddik [55]

Yeeee

assuming your equaiton is
$2ln(e^{ln(2x)})-ln(e^{ln(10x)})=ln(30)$

remember some nice log rules
$log_a(b)=c$ translates to $a^c=b$
and
$a^{log_a(b)}=b$
and
$xlog_c(b)=log_c(b^x)$
and
$ln(x)=log_e(x)$
and
$log(a)-log(b)=log(\frac{a}{b})$
and
if $log(a)=log(b)$ then a=b

so

we can simplify a bit of stuff here

the $e^{ln(2x)} \space\ and \space\ the \space\ e^{ln(10x)}$ can be simplified to $2x \space\ and \space\ 10x$

so we gots now

$2ln(2x)-ln(10x)=ln(30)$
$ln((2x)^2)-ln(10x)=ln(30)$
$ln(4x^2)-ln(10x)=ln(30)$
$ln(\frac{4x^2}{10x})=ln(30)$
same base so
$\frac{4x^2}{10x}=30$
$\frac{2x}{5}=30$
times both sides by 5
$2x=150$
divide both sides by 2
$x=75$
answer is x=75

5 0

3 years ago

-3x = 18 What is x? x=

lorasvet [3.4K]

Answer:

x=15

Step-by-step explanation:

18-3=15

7 0

3 years ago

Read 2 more answers

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