A number, x, rounded to 2 decimal places is 15.38Write down the error interval for x.
1 answer:
Answer:
The error interval for x is:
Step-by-step explanation:
In order to determine the error interval for x, We have to get the all the number which could be rounded off to .
These number can be listed in order such as:
15.375 15.376 15.377 15.378 15.379 15.380 15.381 15.382 15.383 15.384
Therefore, the error interval for x is:
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Answer:
see the explanation
Step-by-step explanation:
we know that
A gross is equal to 120 ones or ten dozen
what is 15 tens - 1 gross
we know that
15 tens means ----> That you are adding 10, 15 times or multiplying 10 by 15, which gives you
1 gross means ---> That you are adding 10, 12 times or multiplying 10 by 12
which gives you
so
The algebraic expression of 15 tens - 1 gross is equal to
Convert to word expression
3 tens
<u>Answer:</u>
Both accounts of Nick and Allie will have same amount of $864 in time period of 4 weeks.
<u>Solution: </u>
Given, Yesterday two friends went into a bank to open savings accounts.
Allie started by putting $783 in her account, and she will deposit an additional $27 each week.
Nick made no initial deposit, but he will add $288 more each week.
In a few weeks, the friends will have the same account balance.
Here, account balance of Allie for every week forms an A.P as
783, 810, 837, ……. With common difference 27
And, account balance of nick for every week will be
0, 288, 576, …….. with common difference 288
Let, after n weeks the balance in both accounts be equal.
Then, nth term of both series will be equal, we know that, nth term tn of A.P is a + (n – 1)d
Where, a is first term, d is common difference and n is number of terms.
Now, nth term of allie series = nth term of nick series.
783 + (n – 1) x 27 = 0 + (n – 1) x 288
Here, we used same n for both sides because n represents number of weeks and it is common to both
783 + 27n – 27 = 288n – 288
756 + 288 = 288n – 27n
261n = 1044
n = 4.
So, it will take 4 weeks to have same balance and now, substitute n value in nth term of nick series.
Hence, both accounts will have same amount of $864 in time period of 4 weeks