Okay, I think your saying he has 200 total right, if so then you will say 200-20 over 2, so 180 divided by two = 80 in each box; now- 40s +(2b)s +200 b=12 and s=8 so; 40x8+(2x12)8 + 200
320 +192 +200
712
Presley needs to have 712 books ready.
The answer is A. Im not exactly sure how to get there I just plugged it into my calculator.
Answer:
This statement is "TRUE".
Step-by-step explanation:
Every elementary row operation is reversible. You can get the reverse answer by multiplying by a constant or by multiplying by its inverse. You can add one row to another row and subtract row 1 from row 2 to get it back.
Answer:
The waiter earns $7 per hour
Step-by-step explanation:
In this question, we are asked to calculate the amount a waiter earns per hour at work given the total he had earned including tips.
To solve this question, we can see that we have been given the total amount he has earned and also the amount he has also earned in tips.
Now, to get the standard amount he’s supposed to earn per hour, firstly, we have to subtract the amount he has earned in tips from the total. Mathematically that is 128-86 = $42
This means, by standard he has earned $42 in six hours. Now, we need to calculate the amount she earns by hour.
To do this, we simply divide the total amount earned by the number of hours.
Mathematically that is $42/6 hours = $7 per hour
Answer:
58
Step-by-step explanation:
s-46=12
s=12+46
s=58
