MATHEMATICS MIDDLE SCHOOL

What is 3/8 divided by 9/16? Please explain and show work.

Answers

Answer 1
Answer: To divide a fraction by a fraction you multiply by the reciprocal. That means that you turn the second fraction upside-down, and multiply.
So if you have 3/8 divided by 9/16, you will end up with
3/8 * 16/9
So now you can simplify diagonally, and it becomes 1/1 * 2/3, which is the same as 1 * 2/3.  The next step would be just to multiply fractions like normal, but since we know that any number times 1 is the number, the answer is 2/3
ANSWER: 2/3
Hope this helped, and feel free to ask more questions if you need!!(:
Answer 2
Answer: step1:keep
        that mean you keep 3/8 normal
step2:change
         that mean you change ÷ to ×
         3/8×
step3:flip
         that mean you flip the second number
         9/16 change to 16/9
         3/8×16/9=48/72
so the answer is 48/72
remember there is 3 step:keep 
                                     change
                                     flip

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What is the answer 6.25=r2

Answers

6.25=r2
Divide both sides by 2
3.125=r2/2
2'a cancel out
3.125=r
The opposite of multiplication is division, so you divide 2 from both sides.R2/2 = cancel out6.25/2 = 3.125R = 3.125

Erica can run 1/6​ start fraction, 1, divided by, 6, end fraction of a mile in a minute. Her school is \dfrac23 ​3 ​ ​2 ​​ start fraction, 2, divided by, 3, end fraction of a mile away from her home. At this speed, how long would it take Erica to run home from school?

Answers

Her school is 2/3 miles away

2/3=4/6miles

So we need to find out how long it will take for her to run home from school...

School=4/6 miles

In 1 minutes she can run 1/6 miles

1min=1/6miles

In 2 minutes she can run 1/6+1/6 miles (1/6+1/6=2/6)

2min=2/6miles

3min=3/6miles

4min=4/6miles

It will take Erica 4 minutes to run 4/6 miles, so it'll take her 4 minutes to get home.

Answer:

4.5 minutes

Step-by-step explanation:

the human heart pumps 750 gallons of blood in 9 hours. A human kidney filters 100 gallons of blood in 6 hours. How many more gallons of blood does the human heart pump than a human kidney filters during a 24 hour period?

Answers

The heart pumps 750*24/9=2000 gallons, and the kidney pumps 100*24/6=400 gallons. This is a difference of 2000-400=1600 gallons.

Jeremy uses 18 inches for twine for each box he packs for shipping. How many yards of twine does he need to wrap 5 boxes?

Answers

Jeremy would need 2 1/2 yards of twine to wrap two box's because 18 inches is equal to 1/2 yard. 1/2*4 = 2. Since you have 18 inches leftover or 1/2 of a yard you just add it. I hope this helps! 

What’s the value of x

Answers

Answer: 60??

Step-by-step explanation:

a spinner marked with four sections blue, green, yellow, and red was spun 100 times. find the experimental probability of landing on blue

Answers

25 because onehundred divided by four is 25
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