Answer:
405
Step-by-step explanation:
Do you think than i ve understood it right
3x+9=30
3x=21
x = 21/3 = 7
x = 7
hope helped
Answer:
1) 8= (5xW)+(3xW) (she worked 8 hours total over spread of two days)
2) 8=8xW (he worked 8 hours total over one day)
3) Yes, they worked the same number of hours, they just worked for an different amount of hours.
Step-by-step explanation:
I kind of explained it in the answer, but if you'd like a clarification.
5-2=3 so x is equal to 3
-3+10 is equal to 7 so y is equal to 10
With this we can conclude that x=3 and y=10
I hope that helps :)
Answer:
-3x² +6x -1 = 0
Step-by-step explanation:
x2 - 2x + = 4(x2-2x +1)-3
x² - 2x = 4x²-8x +4 - 3
x²-4x²-2x+8x = 4-3
-3x² +6x = 1
-3x² +6x -1 = 0
