6.7x10^6 always the the decimal points go between the first 2 numbers, and you count the numbers of decimal places following it to get your scientific exponent
Could you rephrase the question a bit? We can't tell what the numbers are... :)
All answers are the pic.
When you are lining up the ratios, make sure they are aligning each other with the same unit.
- The seniors in the class is 6.
- The juniors that went on the field trip is 6 students.
- There is not enough information to determine the seniors that went on the field trip.
-
<h3>How many seniors are in the class?</h3>
Seniors in the class = total number of students - total number of juniors
30 - 24 = 6
Juniors that went on the field trip = 2/3 x 24 = 16 students
To learn more about subtraction, please check: brainly.com/question/854115
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Answer:
x is 7
Step-by-step explanation:
3x - 5(y + x)^2 = 16
3x - 16 = 5(y + x)^2
(y + x)^2 = 1/5(3x - 16) ------ eqn(I)
4x + 2(y + x)^2 = 30
2(y + x)^2 = 30 - 4x
(y + x)^2 = 1/2(30 - 4x) ------- eqn(II)
Equate eqn (I) & (II)
1/5(3x - 16) = 1/2(30 - 4x)
Multiply both sides by 10
2(3x - 16) = 5(30 - 4x)
6x - 32 = 150 - 20x
6x + 20x = 150 + 32
26x = 182
x = 182/26 = 7
