In this case you can say in one hour Austin earns $7.50.
Answer:
X<-4
Step-by-step explanation:
-3x+10>22
subtract 10 to both sides
-3x>12
divide by -3 on both sides
when you divide by a negative number you flip the sign so the answer will be x<-4
Angle-5 and angle-7 are 'vertical angles', so they're equal,
and we can write ...
<u>10x- 9 = 9x</u>
Subtract 9x from each side: x - 9 = 0
Add 9 to each side: <u> x = 9</u>
Now that we know what 'x' is, we can find the size of Angles-5 and -7 .
Angle-7 = 9x = 81° .
Now look at Angle-6 ... the one that's the answer to the problem.
Angle-6 and -7 together make a straight line, so they must
add up to 180°.
<u>Angle-6 + 81° = 180°</u>
Subtract 81° from each side: Angle-6 = <em>99° .</em>
Answer:
-5
Step-by-step explanation:
Answer:
7. 
8. 
9. 
10. 
Step-by-step explanation:
7. Solve for x:
Separate variable and numbers into different sides of inequality:
Divide the inequality by 3:
8. Solve for x:
Eliminate the brackets:
Separate variable and numbers into different sides of inequality:
Divide the inequality by 10:
9. Solve for x:
Solve two inequalities 
and 
separately:
and
So,
10. Solve for x:
Add 1:
Divide by 3:
