3 years ago

One number is eight more than twice another. If their sum is decreased by nine, the result is fourteen. Find the numbers

1 answer:

6 0

$x-\ first \ number\\
y-\ second\ number\\\\
x-8=2y\\
x+y-9=14\\\\
x=2y+8\\
x+y=23\\\\
2y+8+y=23\\
3y+8=23\ \ \ |subtract\ 8\\
3y=15\ \ \ |divide\ by\ 3\\
y=5\\\\x=18$ Answer here

You might be interested in

Is this sequence arithmetic? 6,11,16,21

Tems11 [23]

Answer: Yes, it is.

Step-by-step explanation:

Sorry, I just know the answer because I just did this in school. Like- right now

3 0

3 years ago

If f(x) = 3x to the 2nd+ 1 and g(x) = 1-x, what is the value of (f-g)(2)?

melisa1 [442]

$\displaystyle\\f(x)=3x^2+1\\g(x)=1-x\\\\(f-g)(x)=f(x)-g(x)=3x^2+1-(1-x)=3x^2+1-1+x=\boxed{3x^2+x}\\\\(f-g)(2)=f(2)-g(2)=3\cdot2^2+2=3\cdot4+2=12+2=\boxed{14}$

3 0

3 years ago

in algebra, you can use function ________ to express the idea that salary depends on the number of hours of training.

const2013 [10]

<span>In algebra, you can use function __Notation______ to express the idea that salary depends on the number of hours of training.

</span>

8 0

3 years ago

I’ll give extra points!!

Svetach [21]

Answer:
10

Explanation:
The two shortest sides = the longest side
So I’m this case, the two shortest sides are 7 and 3, which are shown.
Then add:
7 + 3 = 10

6 0

3 years ago

Column vector (4, 1) has been rotated to column vector (-1, 4). Which matrix carried out the transformation?

OLEGan [10]

Answer:

C.(3|-4)

Step-by-step explanation:

5 0

3 years ago