7) 40m = 40/1000 = 0.04km
8) 84m = 84/1000 = 0.84km
9) 63m = 63/1000 = 0.63km
10) 6.1cm = 6.1 × 10 = 61mm
11) 0.6cm = 0.6 × 10 = 6mm
12) 2.9cm = 2.9 × 10 = 29mm
13) 10m = 10 × 100 = 1000cm
14) 43m = 43 × 100 = 4300cm
15) 64m = 64 × 100 = 6400cm
Answer:
Step-by-step explanation:
2.5
(2)/(3) =( 4)/( 3+x)
Cross multiply
2*(3+x)= 4*3
Solve bracket
6+2x=12
Subtract 6 from both sides
2x=6
Divide both sides by 2
x=3
Hope it helps :-)
18x + 13y = 60
6x + 2y = 6 ---> 6x = -2y +6 ---> 18x = -6y+18
Substitution
(-6y +18)+13y =60
-18 -18
--------------------------
7y = 42 so y=6
Then, 6x + 2(6) =6, which you will get x = -1
(-1, 6)
300km south
Go up once from original position then down four times
