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trasher [3.6K]
3 years ago
5

. Estimate the sum of 405 and 385 byrounding to the nearest hundred. Explain​

Mathematics
2 answers:
mars1129 [50]3 years ago
8 0

Answer:

800

Step-by-step explanation:

Round 405 to 400

Round 385 to 400

400+400=800

inn [45]3 years ago
8 0

Answer:

800 to the nearest hundred

Step-by-step explanation:

To Estimate the sum of 405 and 385, we will add 405 together with 385 I.e 405+385 to get 790.

Rounding 790 to a hundred is 800 since the second place value in 790 which is '9' is greater than 5, we will add 1 to the first place which is 7 to give us 8. This will change the second place value to '0' which make the value of 790 to be 800 to a hundred.

Note that 1 can only be added to a preceding value of a number if the succeeding value is greater than 5.

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prohojiy [21]
It will take 2 years.

Year 1 :
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Year 2 :
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$100 + $104 = $204 > $200

There may be a simpler way to solve this using a formula for example, but I just solved this step by step. Please feel free to ask if you have any questions
7 0
3 years ago
Rewrite the following expression 15+21 using the GCF and the distributive property
avanturin [10]
First, we want to find the GCF of 15 and 21, which is 3. Now we do 15 divided by 3 and 21 divided by 3, which gives us 5 and 7. To rewrite the expression, we take the GCF and put it on the outside of the parenthesis. Inside the parenthesis, we put 5 + 7. So it'll look like this:

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3 0
3 years ago
Read 2 more answers
Please answer and show work.
andrew11 [14]
Simplifying
9 + -2x = 35

Solving
9 + -2x = 35

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + -9 + -2x = 35 + -9

Combine like terms: 9 + -9 = 0
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x = -13
4 0
3 years ago
URGENT <br>Perform the indicated operation and simplify the result.
yan [13]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
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DENIUS [597]
None of the answer matches the correct ans
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20(1.8×10^28)
3.6×10^29
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