Subtract the 18 from the 78 then multiply both sides by -1, then divide by 5.
Answer:
15.8
Step-by-step explanation:
do 11.3 + 4.5 = 15.8
Answer:
1:4
Step-by-step explanation:
1:4 Answer:1:4Step-by-step explanation:A ratio can be written like this: 15:60, but it can also be written as the fraction 15/60, which can be simplified to 1/4, or… ... A zoo has 15 toucans and 60 parrots. what is the ratio of the Number of toucans ... 4.9/5. 19. jupiterbhanot. Beginner. 5 answers. 51 people helped ...
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Answer:
Option D is right,.
Step-by-step explanation:
-a+4b+2c=-8 ... i
3a+b-4c=9 ... ii
b=-1 ... iii
Substitute the value of b, in i and ii
-a-4+2c =-8 or -a+2c = -4
and 3a-1-4c = 9 or 3a -4c =8
Now we have two equations in two variables
-a+2c =-4 and 3a-4c =8
a = 2c+4: substitute this in the other equatin.
3(2c+4)-4c =8 Or 2c +12 =8
2c =-4 or c = -2
Substitute in -a+2c =12
-a-2 = -4
a = -2+4 =2
a=2, b=-1 and c =-1 is the solution.
Find a common denominator. The lowest one would come from you multiplying 2/5 by 4 on each side and 1/4 by 5 on each side. You are left with 8/20 and 5/20, added together would be 13/20.
