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.
Please take a clearer picture this is too hard to read coz it's blurry
Answer:(2,2)
Step-by-step explanation:
(3,8)
(1,-4)
8-(-4)/3-1=
12/2=
6
1+1
-4+6
(2,2)
75390
7 is in the ten thousand place
5 is in the thousand place
3 is in the hundreds place
9 is in the tens place
1 is in the ones place
Answer:
second option
Step-by-step explanation:
Given
4p - 28 = 40 ( divide all terms by 4 )
p - 7 = 10 ( add 7 to both sides )
p = 17