a rectangular mural measures 1.3 feet by 4.8 feet. harmony creates a new mural that is 0.6 feet longer. what is the perimeter of harmonys new mural?
No, that is not correct.
The old perimeter is:
p = 2(1.3 + 4.8) = 2(6.1) = 12.2 feet
Since the new mural is 0.6 feet longer in one dimension (we don't know which), the new dimensions of the mural are:
1.3 feet by (4.8 + 0.6) feet OR 4.8 feet by (1.3 + 0.6) feet
In the first case, the new perimeter would be:
p' = 2(1.3 + 5.4) = 2(6.7) = 13.4 feet
In the second case, the new perimeter would be:
p' = 2(4.8 + 1.9) = 2(6.7) = 13.4 feet
Therefore, the perimeter of Harmony's new mural is approximately 13.4 feet, depending on which dimension was increased by 0.6 feet.
old p = 2(1.3+4.8) = ____ ft
since both sides are now 0.6 ft longer,
new p = old p + 1.2 ft
To find the perimeter of Harmony's new mural, we need to add up all the sides.
Given that the rectangular mural measures 1.3 feet by 4.8 feet, we can calculate the original perimeter by using the formula:
Perimeter = 2 * (length + width)
Plugging in the values, we get:
Perimeter = 2 * (1.3 + 4.8)
Perimeter = 2 * 6.1
Perimeter = 12.2 feet
Now, we are given that Harmony creates a new mural that is 0.6 feet longer. To find the new perimeter, we need to add 0.6 feet to each side of the original mural, since the length and width have increased by the same amount.
New length = 1.3 + 0.6 = 1.9 feet
New width = 4.8 + 0.6 = 5.4 feet
Using the same formula as before, we can calculate the new perimeter:
Perimeter = 2 * (new length + new width)
Plugging in the new values, we get:
Perimeter = 2 * (1.9 + 5.4)
Perimeter = 2 * 7.3
Perimeter = 14.6 feet
Therefore, the perimeter of Harmony's new mural is 14.6 feet.