The weight of the last child is 36 lbs.
<h3>How to calculate the mean?</h3>
The average weight of the three children is 60 lbs. The total weight will be:
= 60 × 3
= 180 lbs.
When another child is added, the weight is 54lb. The total weight will be:
= 54 × 4
= 216 lbs
The weight of the last child will be:
= 216 - 180
= 36 lbs.
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Answer:
$36
Step-by-step explanation:
22+14=36
Answer:
Area of shape = 10.8 m²
Step-by-step explanation:
Given:
Length of rectangle 1 = 4000 mm = 4 m
Width of rectangle 1 = 1200 mm = 1.2 m
Length of rectangle 2 = [6200-1200] mm = 5 m
Width of rectangle 2 = 1200 mm = 1.2 m
Find:
Area of shape
Computation:
Area of shape = Area of rectangle 1 + Area of rectangle 2
Area of shape = [(4)(1.2)] + [(5)(1.2)]
Area of shape = 4.8 + 6
Area of shape = 10.8 m²
The equation of a circle:
(h,k) - the coordinates of the center
r - the radius
Plug the coordinates of the points into the equation and check:
The answer is
F(-2,6).
Let x = the first number
Let y = the second number
So we can set up two equations:
x+y = 400
.8x + .85y = 400-68
Use substitution:
y = 400 - x
.8x + (.85)*(400-x) = 332
.8x + 340 -.85x = 332
8 = .05x
x = 160
So that makes y = 240
We want the decreased values so:
160*.8 = 128
240*.85 = 204
So the answers are 128 and 204
