A 1/6 in decimal form is 0.167 aka <span>0.16666666666667</span>
Answer:
1) 130 degrees and 50 degrees 6) a price of a chair is 40, a price of the table is 80 7) a) 16 b)28
Step-by-step explanation:
1) Let it be that the first angle is x, The second one is y
1/5(x+y)=36- the first equation
1/2(x-y)=40- the second equation
The equations are simultaneous
x+y=180 and x-y=80
x+y+x-y=180+80
2x=260
x=130
y=50
6) The cost of a chair is x, the cost of table is y
6x+3y=480 2x+y=160
8x+y=400
8x+y- (2x+y)=400-160
6x=240
x=40
2*40+y=160
y=80
7) The Wan's age is x, the mother's age is y
x+y=60 x=60-y
Two years ago mother's age was y-2, when Wan;s age was x-2
y-2=(x-2)*3
y-2= (60-y-2)*3
y-2= (58-y)*3
y-2=174-3y
4y=176
y= 44
x=60-44=16- Wan's age now
44-16=28- her mother's age when she was born
Answer:
600000710
Step-by-step explanation:
When you add them that is what you get
