What is preceding and succeeding numeral 100 base seven
1 answer:
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Answer:
1000 miles
Step-by-step explanation:
We will use the distance equation to find the answer to this problem.
D = RT
Where
D is distance
R is rate
T is time
At 250 miles per hour, suppose it takes t hours to go to st. paul. Thus, we can write:
D = 250t
Now, at 200 mi per hour, it takes 1 hour longer, so the time is "t + 1", so we can write:
D = 200(t+1)
We can equate both and see:
Now, we solve for t first:
We want the distance of St. Paul, so we can use any equation. lets use the 1st equation:
D = 250t
we know t = 4
so
D = 250 * 4 = 1000 miles
Distance to St. Paul is 1000 miles
The mistake that Anja made during the simplification of the considered expression is given by: Option C: She subtracted the coefficients instead of dividing them
<h3>What are coefficients?</h3>Constants who are in multiplication with variables are called coefficients of those variables.
For example, in we have 10 as coefficient of
Those variables who have got no visible coefficient has 1 as their coefficient. Thus, has got its coefficient as 1. It is true since 1 multiplied with any number is that number itself.(
)
If we have then 'a' is called base and 'b' is called power or exponent and we call it "a is raised to the power b" (this statement might change from text to text slightly).
Exponentiation(the process of raising some number to some power) have some basic rules as:
For the considered situation, the expression that Anja is simplifying is:
Anja simplified it to
She performed operations with variable 'x' correctly since
But coefficients will also get divided. Instead of dividing 10 by -5, she subtracted them (as 10 - (-5) = 10 + 5 = 15)
This was her mistake.
The correct simplification would be:
Thus, the mistake that Anja made during the simplification of the considered expression is given by: Option C: She subtracted the coefficients instead of dividing them
Learn more about exponent and bases here: