What is the numerical expression 5/8-5/12(3-1/4)+2/3 equal to?

Answers

Answer 1

Answer: Let's start with what we know. Since you're in middle school, you probably already have Order of Operations down. That's all this is. With the right order, you can solve this quick and easy :)

5/8 - 5/12 * (3-1/4) + 2/3

Start by finding the LCM of the different fractions. It's 24. You need to make the denominator of each fraction 24. Don't forget; whatever you do to one side of the fraction, you have to do to the other.

You should get 15/24 - 10/24 * (3 - 6/24) + 16/24

Now multiply everything by 24. You should get...
15 - 10(72-6)+16.
Now just solve!
15 - 10(66)+16.
15 - 660 +16.
-630 is your answer.

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Jake spends 2 hours on each homework assignment and he had 3 assignments each day. Orlando spends 2 hours on each homework assignment and he had 2 homework assignments each day. How much time will Jake and Orlando spend doing homework after 30 days?

Answers

Jake: one hundred and eighty hours
Orlando: one hundred and twenty hours

total: three hundred hours

Jake will spend 180 hours on homework assignments after 30 days and Orlando will spend 120 hours on homework assignments after 30 days hope this helps :) (Jake:2 hours X 30 days = 180hrs) (Orlando:4 hours X 30 days= 120hrs)

Point A is at (3, 2.5) and point B is at (3, 1.4) on a coordinate grid. The distance between the two points is ____. Input numbers and decimal point only, such as 5.8

Answers

Answer: 1.1 units

Step-by-step explanation:

We know that the distance between any two points (a,b) and (c,d) is given by :-

$D=√((d-b)^2+(c-a)^2)$

Then , the distance between the points A (3, 2.5) and B (3, 1.4) will be :-

$D=√((1.4-2.5)^2+(3-3)^2)\n\n\Rightarrrow D= \sqrt{{(-1.1)}^2+0^2}\n\n\Rightarrow D =√(1.1^2) \n\n\Rightarrow D =1.1$

Hence, the distance between the two points is 1.1 units.

The Answer Is , 2.5-1.4 = 1.1

For which value of O is sin O= -1

Answers

Answer:

O = 2 π n - π/2 for n element Z

Step-by-step explanation:

Solve for O:

sin(O) = -1

Hint: | Eliminate the sine from the left hand side.

Take the inverse sine of both sides:

Answer: O = 2 π n - π/2 for n element Z

assuming you meant sin(θ) = -1, Check the picture below.

The formula V=lwh is used to calculate the volume of a rectangular prism. What is the equation solved for h?A)Vlw=h
B)lw/v=h
C)V/lw=h
D)Vh=lw
10 points!!! Please help!!

Answers

(h is multiplied with l and w. The opposite of multiplication is division. divide lw from each side)

$V=lwh$

$(V)/(lw) = (lwh)/(lw)$

$(V)/(lw) =h$

The answer is C) V/lw = h

You have said that V = l w h

Divide each side by ' l w ' : V / l w = h

Draw a model for 0.16

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I cant really draw it but i can express it in words
like so. 0.16 is a hundredth so make a hundredths model and then shade in 16 pieces.

Please someone help me and explain this question to me (the last question starting with a straw)

Answers

Each straw is 4-1/8 inches long.
You have one gigantic piece of straw material, 123-3/4 inches long.
How many straws can you cut it up to make ?

===> (123-3/4) divided by (4-1/8) straws.

Each one costs $0.015 to make.
So, once you find the number of short straws you have,
multiply

===> (the number of short straws) x ($0.015) .

That'll tell you how much it costs to make all of them.

Now you know how to do it on your own.
If you don't get 30 straws and $0.45 , please try again.

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