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VMariaS [17]
2 years ago
9

How do you estimate a whole number

Mathematics
2 answers:
rewona [7]2 years ago
8 0
You round it up by changing the number to the nearest ten, hundred, thousand so on. Round the numbers first the use math to help estimate your answer. If the number is 5 or less so 12345 round down and if it's 6789 or 10 round up like 453=450 28=30
stepladder [879]2 years ago
8 0

Answer:

Like if you have 25 and it tells you to round the whole number to the nearest tens place then you would look at the number on the right if it is bigger than you add 1 to the number on the left and turn the 5 in to a 0 so you would come up with 30.

Step-by-step explanation: Like if you have 25 and it tells you to round the whole number to the nearest tens place then you would look at the number on the right if it is bigger than you add 1 to the number on the left and turn the 5 in to a 0 so you would come up with 30.

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Please help me! I need it
Studentka2010 [4]

Answer:

About 0.5

Step-by-step explanation:

By the law of sines:

\dfrac{2}{\sin 105}=\dfrac{c}{\sin 15} \\\\\\c=\dfrac{2}{\sin 105}\cdot \sin 15\approx 0.5cm

Hope this helps!

3 0
3 years ago
Factor the expression completely -9.75 + 3.25x
makvit [3.9K]
3.25*(x-3)

Just take out a 3.25
6 0
3 years ago
The ratio of SAMs age to hank is 5 to 3. If the sum of their age is 24. How old is is hank?
Serggg [28]
Lets consider SAM's age is 'x'  and Hank's age is 'y'
So as per given data Sam's age is 5/3 times of Hank's age
so x = 5/3 * y
3x = 5y --> equation 1
 and also sum of their ages is 24
so, x + y = 24
we need to find Hank's age (y)
so x = 24 - y
Now replace x value in equation 1
3(24-y) = 5y
72-3y = 5y
72 = 3y+5y
8y= 72
y= 72/8
y = 9 years.

So the Hank's age is 9 years

.
3 0
3 years ago
Lisa is cutting a 14-inch piece of paper into 0.4-inch strips. How many strips of paper will she have when she is finished?
QveST [7]
35 pieces since 14/.4 is 35.
5 0
3 years ago
Read 2 more answers
Jack and Jane are married and both work. However, due to their responsibilities at home, they have decided that they do not want
Sergeeva-Olga [200]
By setting up a system of equations we can easily solve this problem. Let's denote Jane's working hours with x and Jack's working hours with y. Since they don't want to work more than 65 hours, the first equation is x+y=65. The second equation is 14x+7y=770. By solving this system of equation \left \{ {{x+y=65} \atop {14x+7y=770}} \right., we find that y=20 hours, which is Jack's maximum working hours. 
6 0
3 years ago
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