Answer:
x=1800
Step-by-step explanation:
x-1584/x=0.12
x-1584=0.12x
x-0.12x=1584
0.88x=1584
x=1800
Hope this helps plz hit the crown :D
Answer:
Step-by-step explanation:
3--2/-6-1=
3+2/-7
5/-7
Answer:
30 red marbles
Step-by-step explanation:
If the ratio is 2 red marbles for every 5 blue marbles then you would add them together to find out how many marbles are in one group.
2+5=7
There are 7 marbles in each group.
Now we have to find out how many total groups there are by dividing the total amount of marbles by the amount in each group.
105÷7=15
There are 15 groups of 7 marbles.
Looking back at the ratio, we know that the 15 groups each have 2 red marbles and 5 blue marbles. So if there is 2 red marbles 15 times (2 marbles in 15 groups) we would multiply.
2×15=30
There are 30 red marbles.
I hope that makes sense.
Use the pythagoream theorem A^2+B^2 then square your answer a being your adjacent side and b being your opposite leg.
