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Vladimir79 [104]
3 years ago
7

One method of estimating is to

Mathematics
2 answers:
Flauer [41]3 years ago
7 0
The answer is "A" because whenever you round (up or down) you are only changing the value a teeny bit, which only matters if you want to measure an exact amount of something. Using a calculator gives you the <em>exact </em>answer. <em />Guess and check really doesn't work because there are ∞ numbers. Any answer is not fine because if the answer is 5 and you answer with 9633, that answer is obviously wrong. So, A is right.
nataly862011 [7]3 years ago
3 0
One way of estimating is to Round the numbers to the nearest whole number.

Hope this helps!
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Find valuable asked for witch ABCD must be a parallelogram, <br> 1<br> 11<br> 2<br> 15
riadik2000 [5.3K]

4x+7 = x+10   parallel sides have to be equal in a parallelogram

subtract x

3x +7 = 10

subtract 7 from each side

3x =3

divide by 3

x =1


4 0
3 years ago
Help!!!!!!!!!!!<br> Solve for x<br> x+11+8x=29<br> Explain how you got the answer please!
dolphi86 [110]
X + 11 + 8x = 29. We need to solve for x.
First, on the left side, you have "x" and "8x": You can always add 2 numbers with the same variable, so you have 1 number: x + 8x = 1x + 8x = (1+8)x = 9x

So we get:
9x + 11 = 29

Now subtract 11 from both sides (You can't do any operation if you don't do it both sides), so you can get the variable alone on the left side, and the numbers on the right side:
9x + 11 = 29
9x + 11 - 11 = 29 - 11
9x = 18

Now divide both sides by 9, so you can transform the coefficient of x to one, and have the numeric value of x on the right side:
9x = 18
(9x)/9 = 18/9
x = 2

So x+11+8x = 29 for x = 2.

You can recheck your answer (very important):
x + 11 + 8x = 2 + 11 + 8*2 = 2 + 11 + 16 = 13 + 16 = 29
The answer has been approved.

Hope this Helps! :)
8 0
3 years ago
Read 2 more answers
Can somebody answer this question
Trava [24]
I can’t really see please text it
7 0
3 years ago
Read 2 more answers
CAN SOMEONE HELP ASAP PLEASE!! I'll give 50 points to the person that's correct!
Gelneren [198K]
Choice 4 is incorrect. The angles aren’t similar nor congruent.
7 0
3 years ago
5 is the result of 12 more than 3/4 of some number. What is the number?
iragen [17]

5= 12+3/4x, identify x

-7=3/4x, isolate x

-7(4/3)=x, -28/3=x

:)

3 0
3 years ago
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