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4 years ago

7

Given the function f(x) = –5|x + 1| + 3, for what values of x is f(x) = –12?

2 answers:

Alexus [3.1K]4 years ago

7 0

The answer to your question is negative 52. hope i helped.

jeka57 [31]4 years ago

4 0

I have a feeling I might be wrong, but this is what I came up with...

-12 = -5 | x + 1| + 3
+ 5 +5 + 5
-----------------------------
-7 = | x + 1| + 8
-8 -8
----------------------
-15 = | x + 1|

-15 = x + 1 15 = x + 1
-1 -1 -1 -1
----------------- OR --------------------
-16 = x 14 = x

Your two values are -16 and 14 if I'm correct.

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A department store sells red and blue shirts. A pack of 4 red shirts costs $53.48 and a pack of 12 blue shirts costs $58.20. Wha

sergij07 [2.7K]

Difference means subtraction. So you take $58.20-$53.48 and you get $4.72.

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3 years ago

Seven less than four times a number is 29 equation pleasee

Daniel [21]

4n - 7 = 29

That's the equation :)

You can use any variable; doesn't have to be n.

If you want to solve for the variable, then it would be 5.5

6 0

3 years ago

Read 2 more answers

You multiply two integers. You increase one of them by 1 and decrease the other

snow_tiger [21]

Integers are numbers without decimals

The integers could you have multiplied are 9 and 2

Let the numbers be x and y

So, we have:

$\mathbf{x \times y}$

Increase x by 1 and reduce y by 1.

So, we have

$\mathbf{(x +1) \times (y -1) = 6 + xy }$

Open brackets

$\mathbf{xy -x + y - 1 = 6 + xy}$

Subtract xy from both sides

$\mathbf{ -x + y - 1 = 6}$

Collect like terms

$\mathbf{ -x + y = 6 + 1}$

$\mathbf{ -x + y = 7}$

Rewrite as:

$\mathbf{ y -x= 7}$

The above means that, the difference between the integers is 7.

There are several integers that fit the above <em>description</em>;

One possibility is: 9 and 2

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6 0

2 years ago

If x is an odd number, write an expression for the odd number that directly follows x

il63 [147K]

The answer is: " (x + 2) " .
_______________________________________

4 0

4 years ago

What single percentage change is equivalent to a 15% decrease followed by a 16% decrease?

Tomtit [17]

Answer:

Decrease of 28.6%.

Step-by-step explanation:

The multiplier for a increase of a% is 1 + a/100.

The multiplier for a decrease of b% is 1 - b/100.

Decrease of 15%

1 - 15/100 = 1 - 0.15 = 0.85

Decrease of 16%

1 - 16/100 = 1 - 0.16 = 0.84

Both:

0.85*0.84 = 0.714

Change:

The initial percentage is 100% = 1.

0.714 - 1 = -0.286

Negative, so a decrease

The answer is a decrease of 28.6%.

8 0

3 years ago