Answer:
Step-by-step explanation:
30 students volunteered to set up booths for the school fair. All of the students worked 2 hours after school on Thursday and on Friday. This means the total number of hour worked on Thursday is 30 × 2 = 60 hours and Friday is 30 × 2 = 60 hours
Twelve of them also worked 3 hours on Wednesday. It means that the total number of hour worked on Wednesday is
12 × 3 = 36 hours
If they did this for 2 weeks, it means that they worked for 2 Wednesdays, 2 Thursdays and 2 Fridays.
Total number of hours worked will be
2×60 + 2×60 + 2×36 = 120 + 120 + 72 = 312 hours
4x + 6 < -6
subtract 6 from both sides
4x < -12
divide 4 on both sides
x < -3
Dilation and reflection
-multiplication of - =reflection
example -(x)
-multiplication of any number other than 1=dilation
example 3x
-addition/subtraction inside the function=horizontal translation
Example (x-3)
-addition/subtraction outside the function=vertical translation
Example x-3
Answer:
x=-10
Step-by-step explanation:
2(x+3)=x-4
2x+6=x-4, subtract x from both sides
x+6=-4, subtract 6 from both sides
x=-10
Plug it back in to check
2(-10+3)=-10-4
2(-7)=-14
-14=-14