MATHEMATICS HIGH SCHOOL

Evaluate each expression. name the property used in each step.
2+6(9-3•3)-2

Answers

Answer 1

Answer: $2+6(9-3*3)-2$

$2+6*(9-9)-2$

$2+6*0-2$

$2+0-2$

$= 0$

Answer 2

Answer: PEMDAS
(9-3) (6x3)
2+6(18)-2
2+6
8(18)-2
144-2
142

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What is the ratio of the length of the input lever arm ti the length of the output lever arm was 6 to 5. If the entire lever is 132 inches long, how long is the input lever arm?

Answers

$6x-\ length\ of\ first \ lever\ arm\n5x-\ length\ of\ second] lever\ arm\n\n6x+5x=132\n\n11x=132\ \ \ | divide\ by\ 11\n\nx=12\n\n 5x=60\n\nin\ put\ lever\ arm\ is\ 60in\ long$

What number is 60% of 25?

Answers

Step 1. 60%= .60
Step 2. 25*.60= 15

OR

X/25 = 60/100
25*60=100X
1500=100x
x=1500/100
x=15

I like to use is=%*of so the is is x percent is .60 and of is 25 so you would set it up like
is=%*of
x=.60*25
.60*25=15

HELP PLEASE!! Give an example of two irrational numbers whose product is an irrational number. AND Give an example of two irrational numbers whose product is a rational number.

Answers

(pi) x 3pi = 3 pi²

pi x 3/pi = 3

Does anyone know any simpler ways of doing long division?
(￣▽￣*)ゞ

Answers

Answer: calculator?

Step-by-step explanation:

Solve for w k=2b-5w/3k

Answers

Answer:

b = $(2b - 3k^(2) )/(5)$

Step-by-step explanation:

To solve for w in this equation;

k = $(2b - 5w)/(3k)$

This implies we have to make w the subject of the formula.

To make w subject of the formula, first we cross multiply.

3k × k = 2b - 5w

3k² = 2b -5w

Now we will subtract 2b from both- side of the equation

3k² - 2b = -5w

we want to make the right hand side of the equation positive, to do that , we will just multiply through by minus sign. The equation becomes;

-3k² + 2b = 5w

We can rearrange the equation;

2b - 3k² = 5w

5w = 2b - 3k²

Then we will now divide both-side of the equation by 5

$(5w)/(5) = (2b - 3k^(2) )/(5)$

In the left side of the equation, the 5 at the numerator will cancel out the 5 at the denominator.

Hence;

w = $(2b - 3k^(2) )/(5)$

$k = (2b - 5w)/(3k)$
$3k^(2) = 2b - 5w$
$3k^(2) + 5w = 2b$
$5w = 2b - 3k^(2)$
$w = (2)/(5)b - (3)/(5)k^(2)$

186 + k = (0 + 358) + 186

Answers

Answer:

k = 358

Step-by-step explanation:

186+k=544

k=544-186

k=358

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