Estimate the sum by rounding to the nearest whole number 18.74+41.49

1 answer:

6 0

Hello!

I'll start w/ 18.74 to round. To round 18.74, the 4 wouldn't have any effect raising the 7's value, since anything 4 and below won't increase the number's value. Now you just have 18.7. The 7 will increase the 8's value to a 9, since anything 5 and up will increase the rounded number's value. So 18.74 is now rounded up to 19.

For 41.49, you'll round the 4 to a 5, since 9 will increase the value of the 4. Now you have 41.5. The newly rounded 5 will then increase the 1's value, making it a 2. So now 41.49 is now rounded up to 42.

You can now estimate the sum by adding 19 w/ 42 to get an estimate of 61!

I hope this helps!!!

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A country's population in 1995 was 184 million. in 2002 it was 188 million. estimate the population in 2006 using exponential gr

GrogVix [38]

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A₍₁₉₉₅₎ = 184 Mil. after t = 7 years, P₍₂₀₀₂₎ = 188 Mil

Let's calculate te growth rate:

P₍₂₀₀₂₎ = A₍₁₉₉₅₎.e^rt

188 = 184.e(^7r)

188/184 = e^(7r)

ln(188/184) = 7.r.lne
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Population in 2006

P₍₂₀₀₆₎ = P₍₂₀₀₂₎.e⁽⁰.⁰⁰³ˣ⁴

P₍₂₀₀₆₎ = 188.e⁰.⁰¹² = 190.2 Mil

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4 years ago

X2 =5. What is the answer for X

grin007 [14]

Answer:

x=2.5

Step-by-step explanation:

First, you do 5 divided by 2, because you are trying to find a missing factor. After that, your answer, which is 2.5, is what x equals.

Hope that helps!

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4 years ago

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