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3 years ago

If 2x+8=16, what is the value of x+4?

Mathematics

1 answer:

True [87]3 years ago

7 0

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{8}}}}}$

Step-by-step explanation:

First, finding the value of x

$\sf{2x + 8 = 16}$

Move 8 to right hand side and change it's sign

$\dashrightarrow{ \sf{2x = 16 - 8}}$

Subtract 8 from 16

$\dashrightarrow{ \sf{2x = 8}}$

Divide both sides by 2

$\dashrightarrow{ \sf{ \frac{2x}{2} = \frac{8}{2} }}$

Calculate

$\dashrightarrow{ \sf{x = 4}}$

Value of x is 4

Now, Substituting / Replacing the value of x in order to find x+4

 $\sf{x + 4}$ 

plug the value of x

$\dashrightarrow{ \sf{4 + 4}}$

Add the numbers : 4 and 4

$\dashrightarrow{ \sf{8}}$

Hope I helped!

Best regards! :D

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Find the explicit formula for the sequence? -1,4,-16,64......

Ede4ka [16]

The explicit formula for given sequence is: $a_n = -1 . (-4)^{n-1}$

Step-by-step explanation:

Given sequence is:

-1,4,-16,64.....

We can see that there is no same difference between consecutive terms so we will find common ratio to see if it is a geometric sequence.

Here

$a_1 = -1\\a_2 = 4\\a_3 = -16\\a_4 = 64\\r = \frac{a_2}{a_1} = \frac{4}{-1} = -4\\r = \frac{a_3}{a_2} = \frac{-16}{4} = -4$

The explicit formula for geometric sequence is:

$a_n = a_1r^{n-1}$

Putting the values of r and a1

$a_n = -1 . (-4)^{n-1}$

Hence

The explicit formula for given sequence is: $a_n = -1 . (-4)^{n-1}$

Keywords: Geometric sequence, common ratio

Learn more about geometric sequence at:

#learnwithBrainly

5 0

3 years ago

How to do question 5 and 6. Can you explain the first one which is A for 5 and 6? Thank you

Illusion [34]

for 6

in a

given

slope(m)=1

point=(2,-4)=(x1,y1)

we know

equation of straight line

y-y1=m(x-x1)

y+4=1(x-2)

y+4=x-2

therefore x-y-6=0 is the required equation

substituting with ax+by+c=0 we get

a=1

b= -1

c= -6

4 0

3 years ago

Mrs. Fowler has 28 students in her class, and 16 of them are boys.

Elan Coil [88]

We subtract 28 - 16 and get the number of girls
so lets do that
28 - 16 = 12
now we know the unsimplified ratio os 12 to 16
simplifed girls 12 ÷ 4 = 3
simplified boys 16 ÷ 4 = 4
since it says (girls to boys) we put girls first then boys
so it would become 3 : 4
Or the answer is B.) 3 : 4

5 0

3 years ago

SOLVE

Ber [7]

Answer:

Step-by-step explanation:

Numer 1: The answer to this problem is 4 pounds

Numer 2: 13 cups

Explanation:

Four jars of sauce with 26 oz would be a total of 104 ounces

4 x 26 = 104

1 cup contains 8 ounces.

104 oz x $\frac{1cps}{8oz}$ =13 cups

Numer 3: Since, 1 quartz = 33.307 ounces ( approx )

⇒ 3 quartz = 99.921 ounces

If the total number of players = 16,

And, the given fluid is divided equally among these players,

Then the total quantity of fluid each player get

$\frac{toral quality od drink }{ total players}$

= $\frac{99.921}{16}$

=6.24505625= 6.245

Hence, each player will get around 6.245 ounces of the drink.

Number 4:

36 inches or 3 feet is the correct answer

Number 5 ;

The correct answer for the question that is being presented above is this one: "10 pounds." An office supply company is shipping a case of wooden pencils to a store. There are 64 boxes of pencils in the case. If each box of pencils weighs 2.5 ounces, then...

There are:

64 boxes of pencils

1 box weighs 2.5 ounces

Find its total weight in pounds.

1 ounce = 0.0625 pounds

64 boxes * 2.5 ounces = 160 ounces

160 ounces * 0.0625 pounds/1 oz = 10 pounds.

The 64 boxes of pencils weigh 10 pounds.

8 0

2 years ago

Find the perimeter and area of the figures of 6ft and 8ft?

Svetradugi [14.3K]

The perimeter is 28 and the area is 24

4 0

2 years ago

If 2x+8=16, what is the value of x+4?​

If 2x+8=16, what is the value of x+4?