So marked down 10 then 12 so 10+12=22
mark down total is 22%
100-22=78
78% of 109=0.78 times 109=85.02
tax of 6%
6+100=106%
85.02 times 1.06=90.1212 or about 90.12
90<90.12
no she is short 12 cents
Answer:
n=-5
Step-by-step explanation:
Isolate the variable
Answer:
x=9
Step-by-step explanation:
2(10-22×0)=(2x+2)
Applying BODMAS
2(10-0)=(2x+2)
2(10)=2x+2
2x+2=20
2x=20-2
2x=18
x=9
Answer:
3/11
Step-by-step explanation:
Answer:
Step-by-step explanation:
total weight is 4 tons.
ratio of weight of truck to weight of coal is 7:5....added = 12
so 7/12 of the total weight is the truck's
and 5/12 of the total weight is the coal
7/12 of 4 tons = 7/12 * 4 = 28/12 = 2 1/3 tons <== weight of truck
5/12 of 4 tons = 5/12 * 4 = 20/12 = 1 2/3 tons <== weight of coal
