Hello :
4√2-7√2= (4-7)√2 = -3√2
Answer:
144 pages
Step-by-step explanation:
3 hours * 60 = 180 minutes
40 pages / 50 minutes = x pages / 180 minutes
40/50 = x/180
cross multiply
50x = 40 * 180
50x = 7200
x = 7200 ÷ 50
x = 144
What you have to do is multiply 21 by 2. it is 42. $42 dollars was the original price of the bookcase.
Terry has 43 in her checking account....she then writes a check for 62...
43 - 62 = - 19 <==