Answer:
a=2
b=5
Step-by-step explanation:
5a=2b
a=2/5b
2(2/5b) -3b= -11
4/5b-3b =-11
-2.2b=-11
b=5
5a=2*5=10
a=2
6/10=60/100
60/100+1/100=61/100
hope this helps
Answer:
Step-by-step explanation:
Total marbles in bag= 55
Given that
The number of green marbles is 7 more than 5 times the number of blue marbles.
Let green marble be x
And blue marble be y
Therefore,
Green=seven more than 5 times blue
Green=7+5timesblue
x=7+5y. Equation 1
Also the sum of the marbles is 55
x+y=55. Equation 2
Substitute equation 1 into 2
7+5y+y=55
7+6y=55
6y=55-7
6y=48
y=48/6
y=8
From equation 2
x+y=55
Then, x=55-y
x=55-8
x=47
Then, green marbles is 47.
Also, Blue marbles is 8
When ur variables cancel and ur left with a true statement...equal statements, such as 0 = 0 or 6 = 6, then u will have infinite solutions. So the answer to this is infinite solutions.
** now if u were left with 0 = 3 or 2 = -2....then there would be no solutions.
if u ended up with x = 7 or y = 5....a variable equal to a number, then there is 1 solution
Answer:
r = 1 ft
Step-by-step explanation:
Using the formula
d=2r
Solving for
r = d/2 = 2/2 = 1 ft
