Answer: (b) 48 cm
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Explanation:
Divide the perimeter of the square over 4 to get the side length s.
s = P/4
s = 48/4
s = 12
The side length of the square is 12 cm. This leads to an area of...
A = s^2
A = 12^2
A = 144
The area of the square is 144 square cm.
The rectangle is 4 cm^2 less than the square's area, so we know the rectangle has area 144-4 = 140 cm^2.
If the length of the rectangle is 14 cm, then the width must be
W = A/L
W = 140/14
W = 10
This is a 14 cm by 10 cm rectangle (note how 14*10 = 140)
The last step is to compute the perimeter of the rectangle
P = 2(L+W)
P = 2(14+10)
P = 2*24
P = 48
You can use the formula P = 2L+2W, but it's effectively the same thing.
The perimeter of the rectangle is 48 cm.
Answer: 2. 6 X 2 -4
Step-by-step explanation:
Only 2 fits the descriptions, where 6 is multiply 2, 6 x 2. And we subtract 4 from it, 6 x 2 -4.
Answer:
Mile Run = 12.85 Long Jump = 6.63 Softball Toss = 22.1
Step-by-step explanation:
To do this you do not just plug it in. If you read it carefully, you would have to add. For example, Brianne would run 2.36 minutes faster than Crystal, so that would be 10.49 + 2.36 = 12.85. There you go! Hope this helps!
Answer:
B. -⅜ and 67.35
Step-by-step explanation:
An equation can be given in the slope-intercept form such as y = mx + b, where,
m is the slope and b is a constant which is the y-intercept.
In the case of the formula, P(t) = 67.35 - 3t/8,
The constant, 67.35, in the equation, is the y-intercept (b)
The number multiplying the variable, t, which is -⅜, is the slope (m) of the equation.
Slope = -⅜, y-intercept = 67.35
Answer:
150
Step-by-step explanation:
