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Savatey [412]
3 years ago
7

Estimate the solution to the equation 3.1g = 20.9 to the nearest whole number. about 7 about 8 about 10 about 5

Mathematics
2 answers:
lubasha [3.4K]3 years ago
8 0
Divide both sides by 3.1 and find g = 20.9/3.1 ≈ 6.7 ≈ 7.
You can estimate this without a calculator by saying 20.9 ≈ 21 and 3.1≈3, then 21/3=7.

In general, be careful with rounding before a calculation, because the rounding errors can be enlarged, messing up the accuracy of your answer. It's best to round only at the end.
Harman [31]3 years ago
3 0

Answer:

the correct answer is 7

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​ y=−2x−5 y=2x−2 ​
Anettt [7]

Answer:

work is shown and pictured

7 0
3 years ago
In a horse race, the odds in favor of the first horse winning in an 8-horse race are 2 to 5. The odds against the second horse w
Nataly_w [17]

The probability that the first horse wins is 2/7. The probability that the second horse wins is 3/10. Since the events that the first horse wins and the second horse wins are shared exclusive, the probability that either the first horse or the second horse will win is :

2/7 + 3/10= 41/70

Hope this is correct.

4 0
3 years ago
Please help my solve this problem. :(
solniwko [45]
The answer would be 90
8 0
3 years ago
What is -1/2(-4/5) multiplied then in simplest form?
olchik [2.2K]
-1/2(-4/5)

Multiply the numerators by each other and do the same for the denominators.
That is:
-1(-4)=4
And 2*5=10

Now we have 4/10
Divide the numerator and the denominator by 2 to get 2/5 which is the simplest form.

Hope this helped.
8 0
3 years ago
What is the measure of angle B in the figure below?
Ostrovityanka [42]

Answer:

3/cube root 2

3/1.73

3*1.73*.73

3.8*10

38-8

30

7 0
3 years ago
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