Three is added to a number, and then the sum is multiplied by 4. The result is 16. Find the number.

2 answers:

7 0

$x-\ number\\\\
4(3+x)=16\\
12+4x=16\ \ \ |Subtract\ 12\\
4x=16-12\\
4x=4\ \ \ |Divide\ by\ 4\\
x=1\\\\ \textbf{Number\ is\ equal\ to\ 1.}$

miskamm [114]2 years ago

4 0

(3+x)*4=16
Distributive property
12+4x=16
-12 -12
4x-4

x=1

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cricket20 [7]

Answer:

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Step-by-step explanation:

First you subtract the first equation from the second one and you get:

3x + 3y = 3

x + y = 1

y = 1 - x

Then you use it on the first equation

888x + 889 (1 - x) = 890

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2 years ago

An exponential growth function has an asymptote of y = –3. Which might have occurred in the original function to permit the rang

Blababa [14]

The right choice is: A whole number constant could have been subtracted from the exponential expression.

Let be an exponential function of the form $y = A\cdot e^{B\cdot x}$ , where $A$ and $B$ are real numbers. A horizontal asymptote exists when $e^{B\cdot x} \to 0$ , which occurs for $B\cdot x \to - \infty$ .

For this function, the horizontal asymptote is represented by $y = 0$ and to change the value of the asymptote we must add the parent function by another real number ( $C$ ), that is to say:

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In this case, we must use $C = -3$ to obtain an horizontal asymptote of -3. Thus, the right choice is: A whole number constant could have been subtracted from the exponential expression.