Answer:
Step-by-step explanation:
The formula you should use is
b = 7 * h
You can try any value to see what happens
Let h = 3
b = 3*7
b = 21
4
Answer:
The decimal number 8,500,000 has been converted to its corresponding scientific notation, which is .
Step-by-step explanation:
- Given: The decimal number 8,500,000.
- We need to convert the number to its corresponding scientific notation.
- Dissociate the number into the multiples of 10.
- Adjust the coefficient such that it lies between 1 and 10.
- Use the format to write the final answer.
Step 1 of 1
Remember that the decimal lies at the end of 8,500,000. Move the decimal next to 8 such that the result is greater than 1 and less than 10 . So the decimal point will move 6 places to the left.
As 8,500,000 is greater than 1 so the power of 10 will have an exponent of 6 .
So,
Verifying the result we can see that
when multiplied by 8.5 will result in 8,500,000.
45 students for performance
30 students for jazz
19 for both
Add the two bands first
45 + 30 = 75 students
Since there are 19 for both and the question is how many students signed up for only one of the two bands (not both bands).
75 - 19 = 56 students signed for one of the two bands
So you're good to go
-------------------------------------
Expression
-------------------------------------
5x - 3x
-------------------------------------
Substitute x = 2
-------------------------------------
5 (2) - 3(2)
= 10 - 6
= 4
-------------------------------------
Answer: 4
-------------------------------------
Answer:
17.1 hrs
Step-by-step explanation:
If she tutored 2 1/3hours the first week and 1.5 hours the second week .
That’s 2 1/3 hrs + 1.5hrs
Change 2 1/3 to improper fraction. It becomes
7/5 = 1.4 hrs
1.4 hrs + 1.5 hrs = 2.9 hrs
So she’s tutored 2.9 hrs in the first 2 weeks
Hours remaining for her to tutor this week = hours she tutors every month - hours already done this month
That’s 20 hrs - 2.9 hrs
= 17.1 hrs
She has 17.1 hours more to tutor this month