What is 3/4 of 16/21? worked out please

Answers

Answer 1

Answer: of means multiplication

So

$(3)/(4) \sf{of} (16)/(21) = (3)/(4) * (16)/(21)$

And then simplify the numerator ad denominator

= $(3 * 16)/(4 * 21) = (\ 1 * 16)/(4 * 7)$

And simplify the numerator and denominator again

= $(\ 1 * 16)/(4 * 7) = (\ 1 * 4)/(1 * 7)$

And we are finally left with the answer which is $(4)/(7)$

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Round 218 to the nearest hundred

Answers

When rounding to the nearest hundred, if the number in the tens place is less than 5, you should round downwards (keep the same number shown in the hundreds place). However, if the number in the tens place is 5 or greater, than you have to round up, which means adding one to the number currently in the hundreds place. So, for this problem, the digit 1 is in the tens place. Because 1 is less than 5, we know that we have to round down. Thus, 218 rounded to the nearest hundred is 200. Hope this helps!!

$199 MP3 player; 15% discount

Answers

15% of $199 is:
$199* (15/100)= $29.85

$199 -$29.85= $169.15

The final answer is $169.15~

your answer is 170. what u do is take 199 and multiply it by .15% and that gave me 30$. then what u do is take 199 and subtract it by $30 and that gave me 270. I rounded it to the nearest 10nth place.

The radius of a circle is 15 feet. What is the angle measure of an arc π feet long?

Answers

Answer:

9.144 arc feet long

Step-by-step explanation:

i just used a calculator

Gloria talked on her cell phone for 320 minutes the first mouth , and 489 minutes the third mouth . Her payment package does not allow her to pay per minute ; she can only buy packages . If she has to pay $ 25 for every 200 minutes , how much did she pay for the first 3 months ?

Answers

add up minutes

1stmonth+2ndmonth+3rdmonth=320+243+489=1052
how many 200's are there
6 of them (companies want money so they see, ok, you bought like 1 minute, we will charge you for the whole 200 minutes since you got in that zone)

6 times 25=150

cost is $150 (mom is not going to be happy, she spend like 3% of her waking hours takling on the phone)

If the area of triangle ABD is 12 square units, what is the area of Rectangle ABCD?

Answers

24 because if you put two triangles together they make a Rectangle

What is the opposite of 3.78

Answers

The opposite of 3.78 is -3.78

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