Answer:
36ft
Step-by-step explanation:
2x+3y=45
x+y=10
Take the bottom equation and solve for y
x+y=10
Subtract x from both sides
y=-x+10
Substitute into the top equation
2x+3(-x+10)=45
2x-3x+30=45
Subtract 30 from both sides + add like terms
-x=15
Divide both sides by -1
x=-15
Answer:
Step-by-step explanation:
1 are = 100 m²
Assuming the ten squares are congruent, the area of each square is 160/10 = 16 are
16 are × 100 m²/are = 1600 m²
each side is √1600 = 40 m
Answer:
N=6
Step-by-step explanation:
You need to prime factorize 150. 150 = 3*5*2*5.
x*x=perfect square.
What we have done so far is we have split 150 into a few digits
You can add 5 to one box and 5 to the other.
Next if we add 3 to one box and 2 to the other box, then they wont be equal.
Let's try 5*6 and 5.
6 is missing from the second box, so N must be 6 to create a perfect square.
The perfect square is 900 and 30*30 = 900, so it is a perfect square.
Answer: 45/1637
Explanation:
Simplify:
90/3274 = 45/1637