Answer:
62 inches
Step-by-step explanation:
Let x be the height ( in inches ) of Ivan,
∵ Marcia is 5 inches shorter than Ivan,
height of Marcia = x - 5,
Marcia is twice as tall as Sally-Jo,
height of sally-jo =
Mom is 2 inches taller than Ivan.
⇒ height of mom = x + 2,
Mom is 3 inches shorter than Dad,
height of dad = x + 2 + 3 = x + 5,
So, mean height of family is,
According to the question,
x + 5 = 74 ( 1 ft = 12 in )
x = 69
Hence, mean height of the family =
= 62 inches
Solving expression we get
Step-by-step explanation:
We need to solve the expression:
Solving:
Multiplying 5 with terms inside the bracket:
So, Solving expression we get
Keywords: Solving Expressions
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Answer:
Part 22) The area is and the perimeter is
Part 24) The area is and the perimeter is
Part 26) The area is equal to
Step-by-step explanation:
Part 22) Find the perimeter and area
step 1
The area of a rectangle is equal to
we have
Remember that
When multiply exponents with the same base, adds the exponents and maintain the base
substitute in the formula
step 2
The perimeter of a rectangle is equal to
we have
substitute in the formula
Part 24) Find the perimeter and area
step 1
The area of triangle is equal to
where
Remember that
When multiply exponents with the same base, adds the exponents and maintain the base
substitute the given values
step 2
Find the perimeter
I will assume that is an equilateral triangle (has three equal length sides)
The perimeter of an equilateral triangle is
where
substitute
Part 26) Find the area
The area of a circle is equal to
where
Remember the property
substitute in the formula the given value