All categories

3 years ago

If x−3=5, what is the value of 2(x+4)?

Mathematics

2 answers:

lesya [120]3 years ago

5 0

We have x - 3 = 5 => x = 8
So 2(x+4) = 2(8+4) = 2. 12 = 24

Ok done. Thank to me:>

Wittaler [7]3 years ago

3 0

Answer:

Step-by-step explanation:

x-3=5, solve for x so that x=5+3

now put this in place of x in the expression 2(x+4)

2[(5+3)+4]

2(8+4)

2(12)

You might be interested in

The table of values represents an exponential function f(x).

Ostrovityanka [42]

Answer:

-3.98 (nearest hundredth)

Step-by-step explanation:

The average rate of change of function f(x) over the interval a ≤ x ≤ b is given by:

$\dfrac{f(b)-f(a)}{b-a}$

Given interval: -2 ≤ x ≤ 2

$\implies a = -2$

$\implies b = 2$

$\implies f(a) = f(-2)=16$

$\implies f(b) =f(2)= \dfrac{1}{16}$

Substituting the values into the equation:

$\begin{aligned}\implies \textsf{rate of change} & =\dfrac{\frac{1}{16}-16}{2-(-2)}\\\\ & = \dfrac{-\frac{255}{16}}{4}\\\\ & = -\dfrac{255}{64}\\\\ & = -3.98\: \sf (nearest\:hundredth)\end{aligned}$

7 0

2 years ago

A 30-inch segment is cut into two parts whose lengths have the ratio 3 to 5. Find the length of the shortest part. 6 2 11. 25 3.

attashe74 [19]

3 parts section is 11.25” long

4 0

2 years ago

Explain how to find 27% of 16 using multiplication by

just olya [345]

Answer:

4.32

Step-by-step explanation:

You can multiply 16 by 0.27 to get the answer.

16*0.27=4.32

You can check your work with estimation because 27% is about 1/4 of the number, and just by looking at the number, 4 is 1/4 of the number.

6 0

2 years ago

Read 2 more answers

48 cookies 25% increase

9966 [12]

Answer:

Step-by-step explanation:

48 multiplied by 25% = 48 multiplied by 0.25 = 12

48 plus the increase = 60

5 0

3 years ago

Can I get some help Please?

MAXImum [283]

Answer:

Yes

Step-by-step explanation:

So quadratic formulas help

4 0

2 years ago