MATHEMATICS MIDDLE SCHOOL

Please help me..Its due 2mrw..

Answers

Answer 1

Answer:

Answer:

a. 30%

b. 30

Step-by-step explanation:

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What is 902.631 rounded to the nearest hundredth?

Answers

Decimals are weird because unlike whole numbers they don't have a ones place. So the number after the decimal (6) is in the tenths place, then hundredths, then thousandths, and so on. So to round to the hundredths place (the 3) we would look at the thousandths place (the 1). If that number is 1,2,3,or4 you drop it and the rest of the number is the same. If it's 5 or up you would add one to the hundredths place. In this case it's a 1 so we drop it and the answer is 902.63 :) hope this helps

902.63
You can see this by looking at the hundredth. (in this case 1) and since it is less than 5 you keep the number the same. So you end with 902.63

Equation through (-1,4) and perpendicular to 3y=2x-1

Answers

Answer:

The equation of line perpendicular to given line and passes through points ( - 1 , 4 ) is 2y = -3x + 5

Step-by-step explanation:

Given line equation as :

3 y = 2 x - 1

Or, y = $(2)/(3)$ x - $(1)/(3)$

So , The equation is in the form of y = m x + c

Where m is the slope of the line

∴ satisfying the condition

Slope of given line is m = $(2)/(3)$

Now , ∵ The other line is perpendicular to this line and passes through point ( - 1 , 4 )

Let , Slope of other line = M

∴ for perpendicular line condition , products of the slope = - 1

I.e m × M = - 1

Or , M = - $(1)/(m)$

Or M = - $(1)/((2)/(3))$

Or M = - $(3)/(2)$

Thus The equation of line with slope M and passing through points ( - 1 , 4 ) is

$y-y_1 = M (x-x_1)$

or, $y-4 = - [tex](3)/(2)$ (x + 1)[/tex]

or, 2y - 8 = - 3 (x +1)

Or, 2y - 8 = - 3x - 3

or 2y = - 3x - 3 + 8

∴ 2y = -3x + 5

Hence The equation of line perpendicular to given line and passes through points ( - 1 , 4 ) is 2y = -3x + 5 Answer

Explain how an expression becomes a equation?

Answers

An expression becomes an equation by adding an equal sign to the end of the expression and if there's a number on the other side of the equation. For example, 4+3 becomes an equation if you put 4+3=7. Or, 4+3=2+5. Good luck!

Can someone please check if I’m right please, I have a test tomorrow.

Answers

You can substitute “x” For your answer and solve the problem that way ^^

It’s a a way to “check” yourself.

If it doesn’t fit in and you not get the answer shown the x substitute is incorrect.

I personally think they are right! I also have a test on two step/one step equations lol

suzanne needs materials for her school project. she buys 2.45 yards of material at $4.84 a yard. what is the total cost of the material? round to the nearest cent

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If each yard of material costs $4.84, then you just take this amount and multiply it by 2.45. Therefore 2.45 x 4.84=11.86. Your answer is $11.86.

32 over 96 in simplest form

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1/3 32 goes into 96 3 times

so you multiply 32×1=32
32×2=64
32×3=96

32÷96=3

answer is 3

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