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2 years ago

5

What is the value of the rational expression below when x is equal to 3 (17+x)\(x+2)

2 answers:

elena55 [62]2 years ago

4 0

The value of the expression is 4.

We can find this by taking the original equation and plugging in 3 every time we see an x.

$\frac{17 + x}{x + 2}$

$\frac{17 + 3}{3 + 2}$

$\frac{20}{5}$

4

liubo4ka [24]2 years ago

3 0

Answer:

4 is correct for this problem

Step-by-step explanation:

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Solve equation <br> -143 = 1+8(3 – 3b)

rodikova [14]

Answer:

b = 7

Step-by-step explanation:

-144 = 8(3-3b)

-18 = 3-3b

-21 = -3b

b = 7

4 0

3 years ago

Read 2 more answers

How many solutions does the equation x_1 +x_2+x_3+x_4+x_5=21 have where x_1, x_2, x_3, x_4, and x_5 are nonnegative integers and

omeli [17]

Step-by-step explanation:

$x_{1} + x_{2} + x_{3} + x_{4} + x_{5} = 21\\$ (given)

Let us consider :

$x_{1}$ = $t_{1} + 1$

$x_{2}$ = $t_{2}$

$x_{3}$ = $t_{3}$

$x_{4}$ = $t_{4}$

$x_{5}$ = $t_{5}$

Now, by substituting the above considerations in the above equation, we get:

$t_{1} + 1 + t_{2} + t_{3} + t_{4} + t_{5} = 21\\$

$t_{1} + t_{2} + t_{3} + t_{4} + t_{5} = 20\\$

where,

$t_{i}$ $\geq$ 1

then it follows

n = 20

r = 4

then no. of solutions for the eqn = $_{r}^{n + r}\textrm{C}$

= $_{4}^{24}\textrm{C}$

= 10626

Answer :

no. of solutions for the eqn 10626

4 0

3 years ago

On a farm, there are 100 total legs on people and animals. Each cow and horse has four legs, and

OLga [1]

Answer:

im sorry i dont understand

Step-by-step explanation:

8 0

3 years ago

If the supplement of an angle is two-third of itself ,then its supplement is

stich3 [128]

( 'x' is not 144 .)

The supplement of an angle is (180 - x) .
The problem says that (2/3) of 'x' is equal to (180 - x) .

180 - x = 2/3 x

Multiply each side by 3 :
( Note: 3 x 180 = 540 .)

540 - 3x = 2x

Add 3x to each side:

540 = 5x

Divide each side by 5 :

<u>x = 108°</u> .

5 0

3 years ago

You plan to purchase a bike costing $795. write an equation that could be used to find the amount m, that you must save per mont

Galina-37 [17]

Let
m-------> <span>the amount that you must save per month

we know that
total cost of a bike=$795
5*m=795----------> equation </span><span>that could be used to find the amount m
divide by 5 both sides
m=795/5
m=$159

the answer is
</span>the equation that could be used to find the amount m is
<span>5m=795

</span>

6 0

2 years ago