We can use proportions to solve the problem.
Let x be the length of the desk in the drawing. We can set up the proportion:
10 inches (length in drawing) / x inches (length of desk in drawing) = 13 1/9 feet (actual length) / 40 inches (actual length)
Cross-multiplying, we get:
10 inches * 40 inches = x inches * 13 1/9 feet
Simplifying, we get:
x = (10 inches * 40 inches) / (13 1/9 feet)
Converting 13 1/9 feet to inches, we have:
13 1/9 feet * 12 inches/foot = 157 inches
Substituting, we get:
x = (10 inches * 40 inches) / (157 inches)
Simplifying, we get:
x ≈ 2 3/5 inches
Therefore, the approximate length of the desk in the drawing is 2 3/5 inches, which is option C.
peter drew a scale drawing of is room with a length of 10 inches.the actual length of his room is 13 1/9 feet.the actual length of his desk is 40 inches.approximately what is the length of the desk in the drawing
a.2/5 c.2 3/5
b.2 1/2 d. 2 7/10
3 answers
what is the area if a circle with a diameter of 42cm
The formula for the area of a circle is A = πr^2, where r is the radius of the circle.
To find the radius, we can divide the diameter by 2:
r = d/2 = 42 cm / 2 = 21 cm
Substituting this value into the formula, we get:
A = πr^2 = π(21 cm)^2 ≈ 1385.44 cm^2
Therefore, the area of the circle is approximately 1385.44 square centimeters.
To find the radius, we can divide the diameter by 2:
r = d/2 = 42 cm / 2 = 21 cm
Substituting this value into the formula, we get:
A = πr^2 = π(21 cm)^2 ≈ 1385.44 cm^2
Therefore, the area of the circle is approximately 1385.44 square centimeters.
3 answers