1116 is the perimeter it has. The formula for perimeter is 2l+2w=p
so when you plug the numbers in you get 2(309)+2(249)=1116. So it does not have a perimeter of 1500 cm.
Call the two equations above A and B, in order to not confuse them.
A: -2x + 6y = -38
B: 3x - 4y = 32
For this system we have opposites in x and y, so Elimination (or Linear Combination) works best. Either variable works, so let's work with x first and multiply A by 3 and B by 2. This is done so we get opposites in A and B then when added together give zero.
-2x + 6y = -38 ------> multiply by 3 ----> -6x + 18y = -114
3x - 4y = 32 ------> multiply by 2 -----> 6x - 8y = 64
Now we add the new equations. The -6x and 6x are opposites and go away. We are left with
10y = -50. We divide both sides by 10 and get that y = -5.
Now we take y = -5 and put it into an original equation. Let's use A.
-2x + 6y = -38 the original equation A
-2x + 6(-5) = -38 we found y = -5
-2x + (-30) = -38 evaluating and multiplying
-2x - 30 = -38 apply the parentheses
-2x = -8 add 30 to both sides
x = 4 divide on both sides by -2
Thus x = 4 and y = -5, or (4, -5) is the solution.
Answer:0.5
Step-by-step explanation:
circumference=3.14m
π=3.14
radius=circumference ➗ (2xπ)
radius=3.14 ➗ (2x3.14)
radius=3.14 ➗ 6.28
radius=0.5
radius=0.5m
A blueprint of a house has a scale of 1 in: 6 ft. If a bedroom has a width
of 2 in on the blueprint, what is the actual width of the bedroom?
So 1 inch on the blue print = 6 feet irl (in real life)
So 2 inch on the blue print = 6*2 = 12 feet irl
So the actual width of the bedroom is 12 feet.
