MATHEMATICS MIDDLE SCHOOL

-9(x+3)=18
SOLVE THE EQUATION.
WILL GIVE BRAINLIST AND THANKS

Answers

Answer 1

Answer:

Answer:

x = -5

Step-by-step explanation:

-9(x+3) = -9x-27

Add 27 onto both sides and get -9x = 45

Divide -9 on both sides and you'll see that x = -5 because 45/-9

Answer 2

Answer:

Answer: X=-5 distribute the -9 to x and 3 move the 3 over to the 18 and - 18-3 then dived -9x/15

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For a game, three people are chosen in the first round. Each of those three people chooses 3 people in the second round. How many are chosen the sixth round.

Answers

Answer:

Number of people chosen in the sixth round is 729

Step-by-step explanation:

Given : For a game - 3 people are chosen in first round then each of three chooses 3 people in the second round ans so on.

To find : How many are chosen the sixth round.

Solution : We know,

In first round 3 people choose ⇒no. of people =3

In second round 3 people individually choose 3 people ⇒no. of people = 9

since the number of people chosen with a constant amount forming a geometric series

Geometric series - A sequence of numbers where each term after the first is found by multiplying the previous one by a fixed also called as common ratio.

General form: $a,ar,ar^2,ar^3......$

and n-th term of geometric series is $a_n=ar^(n-1)$

where a - first term , r- common ratio and n-number of term

For the sixth round - a=3, r=3 , n=6

$a_n=ar^(n-1)$

$a_6=3*3^(6-1)$

$a_6=3*3^(5)$

$a_6=3^6=729$

Therefore, number of people chosen in the sixth round is 729

In the sixth round 729 people are chosen.

Rewrite the radical expression as an expression with rational exponents.fifth root of x to the power of 7

7x5
5x7
x to the five sevenths power
x to the seven fifths power

Answers

The radical expression is an expression with rational exponents that can be written after applying the properties of the integer exponent.

What is an integer exponent?

In mathematics, integer exponents are exponents that should be integers. It may be a positive or negative number. In this situation, the positive integer exponents determine the number of times the base number should be multiplied by itself.

It is given that the expression:

$= \rm (\sqrt[5]{x} )^7$

As we know, the expression can be defined as the combination of constants and variables with mathematical operators.

From the properties of the integer exponent:

Integer exponents are exponents that should be integers. It may be a positive or negative number

Applying the properties of the integer exponent:

$= \rm x^{(1)/(5)}^(* 7)$

$= \rm x^{(7)/(5)}$

Thus, the radical expression is an expression with rational exponents that can be written after applying the properties of the integer exponent.

Learn more about the integer exponent here:

brainly.com/question/4533599

#SPJ2

Answer:

x to the seven fifths power

Step-by-step explanation:

x to the power 7: x⁷

Fifth root: (x⁷)^⅕ = x^(7/5)

When a number is a multiple of 6, what are the possible values for the ones digits?

Answers

I would do this by first listing the multiples of 6 until I start to see a pattern with the one's digit.
6x0=0
6x1=6
6x2=12
6x3=18
6x4=24
6x5=30
6x6=36
6x7=42
6x8=48
...
The digits in bold are the one's digits so those are the only ones we really care about. If you list just them it looks like: 0,6,2,8,4,0,6,2,8
Notice how the first set of 5 numbers seems as though it repeats in the 6th, 7th, and 8th numbers. This probably means the pattern continues infinitely so the first 5 numbers are all the one's digits that can come from multiples of 6. Thus your answer is: 0,6,2,8,or 4

Laura spent $48.00 which was 15% of her money. How much money did she have

Answers

to solve this we can make a proportion

48 x
--- = ----
15 100

then cross multiply and divide

45 times 100 = 4500/15=300

she had 300 dollars

Please answer this! Once again, my brain is failing me! And BTW i do not have summer school i am just getting ahead of myself so my mom can brag. xD

Answers

Sell price = $60
Profit = $24
Seller's cost = (60 - 24) = $36

Profit as a percentage of seller's cost = 24/36 = 2/3 = 66-2/3 %

Now your mom can brag that you know how to go online and
get answers from other people.

The number is between 0and 999999