Answer: 10 minutes
Step-by-step explanation:
1. Jonathan can type 20 documents in 40 minutes (20/40=1/2 per minute), Susan can type it in 30 minutes (20/30=2/3 per minute) and Jack can type it in 24 minutes (20/24=5/6 per minute), then you must add them to obtain the number of pages they wan write in 1 minute working together:
2. Then, the time will it take them type the same document of 20 pages is:
0.009 because whenever you multiply a decimal by 10, 100, 1000, 10000 etc. you move the decimal to the right however may zeros are in the number. EXAMPLE:
0.00023*1000=0.23. Hope this helped! Also, dividing is the same, you just move it to the left.
Answer:8/3x
Step-by-step explanation:tell if this didnt work
You find the scale factor which is 10/4=2.5
then times that by 6.
2.5×6=15 and take 6 from 15.
15-6=9
x=9
hope it helps :-)
Answer:
x= -5
Step-by-step explanation: