Answer:
26.8cm²
Step-by-step explanation:
the area if a rectangle is 53.6cm^2.If the length is multiplied by four and the width is halved, the area would then be?
Area of rectangle = length x width
53.6 = 4L x 1/2 W
53.6 = 2L × W
Divide both sides by 2
L × W = 53.6 ÷ 2
New area = 26.8cm²
I hope this was helpful, please mark as brainliest
Answer:
the answer to (8.4 × 102) (2.5 × 106) = 227,052
Answer:
Step-by-step explanation:
The given inequality is;
Clear the fraction by multiply through by 30;
Expand;
Group like terms;
Divide through by -19 and reverse the sign.
Answers:
Dimensions: 3 cm by 4 cm
Perimeter: 14 cm
Area: 12 square cm
========================================
Explanation:
We start off with a 12 cm by 16 cm rectangle, which turns into 3 cm by 4 cm when we divide each value by 4, which is the same as multiplying by 1/4. Alternatively, you can compute 1/4 = 0.25 first and then multiply 0.25 by 12 and 16 to get 3 and 4 respectively.
The length and width of this smaller rectangle is L = 3 and W = 4, so the perimeter P is
P = 2*(L+W) = 2*(3+4) = 2*7 = 14 cm
Alternatively, you can add up the four sides 3, 4, 3, 4 to get 3+4+3+4 = 7+7 = 14 which is the same perimeter value.
The area is
A = L*W = 3*4 = 12 square cm
note: You can write "square cm" as "cm^2"
