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bulgar [2K]
3 years ago
8

Explain how to use rounding when estimating

Mathematics
1 answer:
mart [117]3 years ago
8 0
Okay so rounding is like say you have 13 you'll round it to the nearest 10 which I would get 15, so estimating is pretty much a guess, like what's closest to the actual answer.
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A jar contains 50 tickets for a drawing. Of these, 7 are winning tickets. What are the odds in favor of drawing a winning ticket
Ainat [17]

Answer: 14%

Step-by-step explanation: 7/50 = 14/100 = .14 = 14%

3 0
3 years ago
Describe the calculations needed to solve the problem and explain the order in which you need to do them.
Amiraneli [1.4K]

Step-by-step explanation:

dividing a polynomial by a monomial: multivariate

3 0
4 years ago
Audryn added a $12 tip to a $68.73 restaurant bill. What percent tip did she leave? Round to the nearest tenth of a percent.
Elena L [17]
What percent of $68.73 is $12? We can find out what we have to multiply to $68.73 to get $12. We can substitute this with "x". So then, our equation becomes 68.73x = 12. From there, you just do basic algebra. 

You should get <span>17.4596246% which can then be rounded down to 17% depending on which place you're rounding it by.</span>
5 0
4 years ago
How do I describe the real zeroes of this function using Descartes's Rule of Signs?
Serhud [2]
The number of positive roots is the number of changes of signs there are, then decrease by 2 each time and stop when you get to 1 or 0

negative roots, sub every x with -x and reevaluate, count change of signs
decrease by 2 each time and stop when you get to 1 or 0

y=+2x⁵-x⁴-2x³+4x²+x-2
+,-,-,+,+,-
 1    2  3

3 or 1 positive roots

replace x with -x ( baically flip all signs of odd powerd numbers)

y=-2x⁵-x⁴+2x³+4x²-x-2
   -,-,+,+,-,-
     1    2

2 or 0 negative roots



3 or 1 positive roots
2 or 0 negative roots
2nd option is answer

4 0
4 years ago
A "child has six blocks, three of which are red and three of which are green". How many patterns can shemake by placing them all
makvit [3.9K]

Answer: There are 20 ways and 1680 ways respectively.

Step-by-step explanation:

Since we have given that

Total number of blocks = 6

Number of red blocks = 3

Number of green blocks = 3

So, Number of patterns she can make by placing them all in a line is given by

\dfrac{6!}{3!\times 3!}\\\\=20

If there are 3 white blocks

so, total number of white blocks becomes 9

So, Number of total pattern she can make by placing all nine blocks in a line is given by

\dfrac{9!}{3!\times 3!\times 3!}\\\\=1680\ ways

Hence, there are 20 ways and 1680 ways respectively.

6 0
3 years ago
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