Answer: y-3
Step-by-step explanation:
took the test and got it right!
Answer:
Scientific notation is a way to make these numbers easier to work with. In scientific notation, you move the decimal place until you have a number between 1 and 10. Then you add a power of ten that tells how many places you moved the decimal.
Answer:
22,000
Step-by-step explanation:
c=2πr
2(3.14)3500
Answer:
30
Step-by-step explanation:
DE=10
AE=12
AD=8
So the perimeter is 30
Answer:
5 more than twice a number
2x + 5
.
is the same
=
.
8 less than 3 times the number
3x -8
.
2x + 5 = 3x -8
13 = x
x = 13
.
Check to see if this is right.
.
2x+5 = 2(13)+5 = 31
3x -8 = 3(13)-8 = 31
right.
.
Answer: The number is 13.
.
Done.