MATHEMATICS MIDDLE SCHOOL

if a object on the moon is 1/6 of the weight on earth if a moon rock is 20 1/2 on earth how much does it weigh on the moon

Answers

Answer 1

Answer:

Answer:

3.28

Step-by-step explanation:

20.5x.16=3.28

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Sajia has 30 Books in her library. she sold 9 books at the thrift store on Saturday. Write and solve and inequality to determine how many more books she can sell if she comes back on sunday?

Answers

Sajia can sell 21 books she can sell if she comes back on sunday and the required inequality is $9 + x \leq 30$

Solution:

Given that Sajia has 30 Books in her library

She sold 9 books at the thrift store on Saturday

To find: We have to write and solve an inequality to determine number of more books she can sell if she comes back on sunday

Let "x" be the number of more books she can sell if she comes back on sunday

We can write a inequality as:

$\text{ books already sold } + \text{ number of books remaining } \leq \text{ total number of books she has }$

$9 + x \leq 30$

Now moving 9 from L.H.S to R.H.S we get,

$x \leq 30 - 9$

On solving 30 - 9 = 21,

$x \leq 21$

So Sajia can sell 21 books she can sell if she comes back on sunday

How do you do to the 2nd power

Answers

Something to the second power is simply that number multiplied by itself once. The third power is something multiplied by itself 2 times, and so on

Math help again all work

Answers

Answer:

x > 6

Step-by-step explanation:

-5 > 19 - 3x + (-6)

Combine like terms.

-5 > 13 - 3x

Subtract 13 from both sides.

-18 > -3x

Divide both sides by -3.

6 < x

Flip this around. x > 6

Answer:

Step-by-step explanation:

List of Roots of x^5-3x^4+3x^3-x^2

Answers

Answer:

Step-by-step explanation:

You paint 1/2 wall in 1/4 hour. At that rate, how long will it take you to paint one wall?

Answers

it would take 30 minutes or 1/2 hour

the answer is 1/2 the hour you paint 1/2 in 1/4 so add 1/2+1/2=1 whole so it is 2 so 1/4+1/4=1/4 or 1/2

Tom,Scott and dawn sold cookies at the school fair.Tom had 90 cookies and sold 60% of them.
Scott had 150 cookies and sold 2/3 of them.
Dawn sold 46 cookies.
What percentage of the cookies sold were sold by Dawn?

Answers

first of all work out how many tom and scott sold.
tom sold 60% of 90 cookies which is 54.
scott sold 2/3 of 150 cookies which is 100.
altogether the three of them sold 54+100+46 cookies which is 200.
Dawn sold 46 of these 200 cookies. To work out the percentage we have both the numbers to get 23 out of 100. We halved those numbers because a percentage is out of 100 we halved it to get it out of 100.
so 23 out of 100 is 23% so dawn sold 23%of the cookies.

Hope this helps :)

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