1. 1/4(x+3)=12=X+3-12*4/4=X-45/4. Then, x-45/4=0. So, 1. X=45. 2. x+4/3=12=3x-32/3*3=0*3. 3x-32=0. You add 32 to each sides. 3x=32. x=32/3. Therefore, 1. x=45 and 2. x=32/3
You could label "today" as "0."
Park every 2 days: 2, 4, 6, 8, 10, 12, 14, (etc.) days
Library every 5 days: 5, 10, 15, 20 (etc.)
You can see that the smallest number of days that must go by before Ben can do both things on one day is 10.
Answer:
one eraser would cost £4.25
Step-by-step explanation:
as 9 erasers cost £38.25
divide 38.25 by 9 to find the total cost of one eraser
then the answer should be £4.25
therefore one eraser would cost £4.25
Pre tax in first city = x
pre tax in 2nd city = x - 500
0.09x + 0.095(x - 500) = 970
0.09x + 0.095x - 47.5 = 970
0.09x + 0.095x = 970 + 47.5
0.185x = 1017.50
x = 1017.50/0.185
x = 5500 <== first city
5500 - 500 = 5000 <== 2nd city
