Answer:
Her weekly allowance is $8.
Step-by-step explanation:
Let the weekly allowance of Ming is $x.
If she spends half of her weekly allowance playing mini-golf and to earn more money her parents let her wash the car for $5, then the remaining amount of money that she has = 
dollars.
Now, given that 
⇒ 
⇒ x = $8
Therefore, her weekly allowance is $8. (Answer)
We observe that 20 is 4 more than twice 8. This suggests the time is 1 hour and the rates are
... scooter: 20 mi/h
... bicycle: 8 mi/h
_____
You can let b represent the rate of the bicycle in miles per hour. Then we have (for time in hours and distance in miles) ...
... time = distance/speed
... time = 20/(2b+4) = 8/b
... 20b = 8(2b+4) = 16b +32
... 4b = 32
... b = 8
The rate of the bicycle is 8 mph; that of the scooter is 2*8+4 = 20 mph.
Using the rule for 2x2 matrices,
the determinant for your matrix is
Answer:
the answer is the last option
Step-by-step explanation:
Answer:
Amount John gets paid per hour 
Dollars per hour ,
Step-by-step explanation:
To find how much he gets paid per hour we need to divide the total payment he received by the total number of hours he worked.
Amount John gets paid per hour = 
Dollars per hour.
= Dollars per hour
