Answer:
6 groups of marbles
Step-by-step explanation:
If we do 30 divided by 5 we get 6! Have a nice day!
-Alpha
Let rs.5 denominations be x , then rs 10 denominations will be 90-x
then total amount 5x + 10(90-x) which is rs.500
5x + 10(90-x) = 500
900 - 5x = 500
400 = 5x
therefore x = 80
therefore no. of rs.5 is 80
no. of rs.10 is 90-x = 90-80 = 10
Answer:
B I guess cause that was the closest answer
Answer:
Therefore other two sides of the triangle are 4 and 5.
Step-by-step explanation:
Given one leg of a right triangle has a length of 3
Let other sides of the triangle be x and x+1 [ since they are consecutive]
According to the problem,
3²+x²=(x+1)²
⇔9 + x²=x²+2x+1
⇔2x+1=9
⇔2x=9-1
⇔2x=8
⇔x=4
Therefore other two sides of the triangle are 4 and 5.
Lengthxwidth=area and rectangle Y/B is twice as big as X so
7(x+1)=1/2(4)(3x+6)
7x+7=1/2(12x+24)
x=5
Rectangle X=7(5+1)=42
Rectangle Y=4(3*5+6)=84
84 is twice as big as 42 :D