All categories

3 years ago

Find the perimeter of the shape in terms of X Please help me

Mathematics

1 answer:

swat323 years ago

7 0

Answer:

10x + 21

Step-by-step explanation:

5x + 2x-9 + 3x + 30 = 10x + 21

You might be interested in

Solve the proportion for x

S_A_V [24]

Answer:

Step-by-step explanation:

45 divided by 5 is 9 and what you do on the to you do on the bottom which means you would do 40 divided by 5 which you would get 8 as your answer.

7 0

3 years ago

Solve the equation:<br> 8b = 5.6

alisha [4.7K]

Answer:

b = 0.7

Step-by-step explanation:

to solve the equation, you must isolate "b" so the variable is by itself,,

to do this, divide both sides of the equation by 8:

8b = 5.6

b = 5.6/8

now, simply divide 5.6 by 8 to get your answer,,

b = 5.6/8

b = 0.7

7 0

3 years ago

The digits of a two-digit number sum to 8. When the digits are reversed the resulting number is 18 less than the onginal

polet [3.4K]

Answer:

Step-by-step explanation:

Given: The sum of two digit number is 8

Reversing the digit will get us number 18 less than the original.

Lets take x as tenth digit of our number and y as unit digit of our number.

As given sum of digit is 8

∴ $x+y= 8$

∴ $y= 8-x$ - equation 1

We also know that reversing the digit will get us number 18 less than the original.

∴ $10y+x = 10x +y-18$

Now, lets put the value of y from equation 1

⇒ $10(8-x) + x = 10x+ (8-x)- 18$

⇒ $80-9x= 9x-10$

⇒ $90= 18x$

∴ $x= 5$

Next, substituting the value of x in equation 1

$y= 8-x$

⇒ $y= 8-5 = 3$

∴ $y= 3$

∴ The original number is 53, sum of the digit is 8 and if we reverse the digit of the number, we get 35, which is 18 less than the original number.

7 0

4 years ago

Juanita has 3 rectangular cards that are 3 inches by 9 inches. How can she arrange the cards, without overlapping, to make one

Andru [333]

Pu 2 together straight up then one above it sideways

3 0

3 years ago

I need hellllppp plsssss

bagirrra123 [75]

Answer:

$a_7=-15$

Step-by-step explanation:

$a_n$ is given as the nth term of a sequence.

We want to find $a_7$ , which means we find the 7th term of the sequence.

Here, we simply substitute "7" into "n" of the formula given for $a_n$ to find the value of the 7th term of the sequence.

We show this below:

$a_n=-3(n-2)\\a_7=-3(7-2)\\a_7=-3(5)\\a_7=-15$

So the 7th term is "-15"

6 0

3 years ago