I need help with some maths homework what is the answer 3(x-3)=0

Answers

Answer 1

Answer: if xy=0
assume that at least x or y=0

3(x-3)=0
therefor
3=0 or x-3=0
3=0 is false
therefor
x-3 mus equal zero
x-3=0
add 3 to both sides
x=3

Answer 2

Answer: you would have to use distributive property. it would come out to 3x-9=0 then you would add 9 to -9 and 0. It would then be 3x=9. You would then divide 9 and 3x by 3x. You will get x=3.

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242,628 written in word form

8 9/25 as a percentage

Answers

Solve the proportion by multiplying the two numbers in opposite corners and dividing by the number in the corner opposite the '?'
Examples:

8 9/25 change the mixed number to a improper fraction by multipling the 25 by 8=200 then add 200+9 giving you 209/25 as the improper fraction.

Then you'll need to convert 209/25 = ?/100 divide 25 into 100 =4. then multiply 209*4= 836 so the answer is 836%

What do I put in the blank spots?

Answers

$f(x)=2x+b \to \ line \ one \n\n\n \boxed{5}=2* \boxed{(-1)} +b \to line \ two \n\n\n \boxed{5}=\boxed{-2}+b\to line \ three \n\n\n \boxed{5+2}=b \to \ line \ four \n\n \boxed{7}=b$

David earns $9.60 per hour for a 40-hour week. What was his net pay for a week in which his total deductions were $84.30?

Answers

9.6 times 40 equals 384, minus the deduction the net pay is $299.7

I believe the answer is $299.7, but I am not 100%

Paige was assigned some math problems for homework. She solved the first 32 of the problems before dinner. She finished the last 20% of the assignment after dinner. How many math problems was Paige assigned

Answers

Paige was assigned 40 math problems.

What is an expression?

An expression is a combination of numbers, variables, and operators that represents a mathematical quantity or relationship. Expressions do not contain an equals sign (=) and are not true or false statements. Instead, expressions are evaluated to produce a value or another expression.

Let's call the total number of math problems Paige was assigned "x".

Paige solved the first 32 problems, so she still had to solve x - 32 problems after dinner.

We know that she finished the last 20% of the assignment after dinner, which means she solved 80% of the problems before dinner.

80% of x can be written as 0.8x.

So, the equation we can set up is:

x - 32 = 0.2x

Solving for x, we get:

0.8x = 32

x = 40

Therefore, Paige was assigned 40 math problems.

To know more about an expression follow

brainly.com/question/29970175

#SPJ3

80% of all problems=32 problems.
x=total number of problems.
We can suggest this equation:
80% of x=32
(80/100)x=32
x=(32*100)/80=40

Answer: 40 math problems were assigned.

Sophia walked 6 miles in 90 minutes at bear creek park in eluless, Texas. if she continued at this rate , use a ratio table to determine how many miles she could walk in 60 minutes.

Answers

Answer:

4 miles

Step-by-step explanation:

the data we have is:

Miles Minutes

6 ⇒ 90

and the thing we want to know is how many miles she could walk in 60 minutes:

Miles Minutes

6 ⇒ 90

x ⇒ 60

where the x represents the unknown number of miles she will walk in 60 minutes.

we solve this problem using rule of three, for this we multiply cross quantities (6 by 60) and then we must divide by 90:

x = 6*60/90

x = 360/90

x = 4

in 60 minutes she walks 4 miles.

she can walk 4 miles in 60 minutes. 6/105=4 miles
90/1.5=60 minutes

What is 22,119 rounded to the nearest hundred?

Answers

To round a number to the nearest hundred, you need to check the digit in the tenth position (the position right after the hundred position).
If the number in the tenth position is less than 5, then you convert all the digits after the hundred to zeros
If the number in the tenth position is equal to or greater than 5, then you will add one to the hundred and convert all digits after the hundred to zeros.

Applying this to the given number:
The number is: 22,119
The digit in the hundred position is: 1
we check the digit next to it (the tenth position): It is "1" which is less than 5
so, we just convert all digits after the hundred to zeros
Therefore, 22,119 to the nearest hundreds is 22,100

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