Answer:
255b
Step-by-step explanation:
subtract 256b by b
Answer: 43
Step-by-step explanation:
5-2+7x6-2
3+42-2
45-2
43
Answer: The correct answer is $150.
Step-by-step explanation: If you did not use the coupons while shopping you would have spent $150. The method to calculate this is to divide the amount that you paid by the percentage that you paid.
The formula that you need to use is $120/.8 = $150.
Answer:
3/2 is slope
m= slope
y=mx+b
Step-by-step explanation:
2y=3/2x+7/2
20x+5y=120
10x+7.5y=80 multiply this one by 2
___________
20x+5y=120
20x+15y=160 subtract
___________
-10y=-40 divide both sides by -10
____________
y=4
20x+5(4)=120 plug 4 in for y in the first equation
20x+20=120 multiply
20x=100 subtract
x=5 divide to find x
