Answer:
l = 16, w = 8
Step-by-step explanation:
Let l = length
Let w = width
Area = w * l
128 = w * l
w = 128/l
Perimeter = 2w + 2l
48 = 2w + 2l
48 = 2(128/l) +2l
48 = 256/l +2l
Multiply everything by l
48l = 256 + 2l^2
l^2 + 128 = 24l
l^2 + 128 -24l = 0
(l-16)(l-8)= 0
L = 16
L = 8
If you try them out, and test it, l = 16 would work:
2(16) + 256/16 = 48
32 + 16 =48
16 * 128/16 = 128
16 * 8= 128
128 = 128
Since I'm not sure if you are in advanced math or not, I will do it simple with guess and check
Try w is
Answer:
>12 years
Step-by-step explanation:
P' = P (1 + r)ⁿ
P' = 2P
2P = P (1 + 0.06)ⁿ
1.06ⁿ = 2
n = log₁.₀₆ 2 = 11.9
Answer:
g = 12
Step-by-step explanation:
(g - 3) = 3 ← multiply both sides by 3 to clear the fraction
g - 3 = 9 ( add 3 to both sides )
g = 12
Answer:
At most one of the adults has high blood pressure.
Step-by-step explanation:
<span>...
| 12: 2 + 4 x (3 +5) =
2 x | 12: 2 + 4 x (3 +5) =
</span> | 12: 2 + 4 x (3 +5) =
-------------------------
2 x 36: 6 + 12 x (9 +15) =
2 x 6 + 12 x 24 =
2 x 6 + 288 =
12 + 288 = 300