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rodikova [14]
3 years ago
6

3. What is the radius, in centimeters, of a circle that has a circumference of 16 centimeters? ​

Mathematics
2 answers:
iogann1982 [59]3 years ago
5 0

Answer:

r=2.55cm

Step-by-step explanation:

ludmilkaskok [199]3 years ago
3 0
Answer: 8cm I think-
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If twice a number is at least three less than four times the number, which of the following are true? Let n represent the number
NikAS [45]

Answer:


Step-by-step explanation:

Let n represent the number

Twice the number =2n


4 times the number = 4n


Given that twice the number is atleast 3 less than four times the number


Algebraically this can be written as


2n≤4n-3


We can add 3 to both sides


So n should be atleast 1.5


If n is natural number or integer then least value of n is 2.



5 0
3 years ago
If you were asked to convert 75 m/s to km/hr, which conversation factors would you need to use. Select all that apply.
Vilka [71]

Answer:

You need to use A, B, and C.

Step-by-step explanation:

Let's treat the units as variables. I'll illustrate why in a moment.

75 m/s =\frac{75m}{1s} \\\\\frac{75m}{1s}*\frac{1km}{1000m}=\frac{75m*km}{1000m*s}\\\\\frac{75m*km}{1000m*s}*\frac{60s}{1min}=\frac{(75*60)m*km*s}{1000m*s*min}\\\\\frac{4500m*km*s}{1000m*s*min}*\frac{60min}{1h}=\frac{4500m*km*s*min}{1000m*s*min*h}

Now, as you can see, we have a giant mess of units to deal with. This is where we can treat the units like separate variables and use a bit of algebra to make our lives easier:

\frac{4500m*km*s*min}{1000m*s*min*h}=\frac{4500}{1000}*\frac{m*km*s*min}{m*s*min*h}\\\\\frac{4500}{1000}*\frac{m*km*s*min}{m*s*min*h}=\frac{4500}{1000}*\frac{m}{m}*\frac{km}{1}*\frac{s}{s}*\frac{min}{min}*\frac{1}{h}\\\\\frac{4500}{1000}*\frac{m}{m}*\frac{km}{1}*\frac{s}{s}*\frac{min}{min}*\frac{1}{h}=\frac{4500}{1000}*\frac{m*km*s*min}{m*s*min*h}=\frac{4500}{1000}*1*\frac{km}{1}*1*1*\frac{1}{h}\\\\\frac{4500}{1000}*1*\frac{km}{1}*1*1*\frac{1}{h}=\frac{4500}{1000}*\frac{km}{h}\\

\frac{4500}{1000}*\frac{km}{h}=\frac{45}{1}*\frac{km}{h}=45 \frac{km}{h}

So, backtracking through that entire mess, we had to use \frac{1km}{1000m} ,\frac{60s}{1min} ,\frac{60min}{1h}.

These correspond to the options of A, C, and B accordingly.

So you need to use A, B, and C.

8 0
3 years ago
What is 6/7 of2/3? pls help<br> \
Alenkasestr [34]

Answer:

4/7

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Yesterday a chef used 36 eggs to make 8 chocolate souffles and 3 lemon meringue pie. The day before, he made 2 chocolate souffle
Masteriza [31]

Answer: Well first one chocolate souffles uses 3 eggs and each lemon maringue uses 4

Step-by-step explanation: First what i did was look at the question and it shows that there is two sets, so you have to plug in some random numbers and i started at o and if you do 8*1 you would have 1 egg per each souffles and you would have 28 eggs left and that won't work because 28/3 gives some long and then i tried 2... and 8*2 is 16 so you would have 20 eggs left and of course another long answer. But if you try three, 8*3 it gives you 24 so 36-24 and you get 12 and 3*4 is 12.. so then i plugged the same numbers in for the second part.. 3*2=6 and 4*2=8 and 6+8=14

if you need better more im here to help... have a good dayy!! (✿◡‿◡)

4 0
3 years ago
Points for free because yes claim it B)
galben [10]

Answer:

Thank you!

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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