Answer:
<u>The correct answer is x = 7.05</u>
Step-by-step explanation:
1. Let's review the information given for answering the question:
7. 9x = 55.68
2. For solving the equation, we should proceed this way:
x = 55.68/7.9
x = 7.0481
<u>x = 7.05 (Rounding to two decimal places)</u>
<u>3. </u>Let's prove if the value of x is correct
7.9 * 7.05 = 55.68
55.69 = 55.68
<u>The value is correct because we rounded the value of x</u>
If by lateral area you mean the total surface of the rectangle :
each side appears twice so the total area A will be
A=2(length*width+width*height+height*length)=16*8+8*4+4*16
A=224
If you meant lateral area as in the total area minus the top and bottom base:
A=2(width*height+height*length)=8*4+4*16=96
1/4 = 0.25
5/8 = 0.625
20% = 0.20
So now we have: 0.20 < 0.25 < 0.3 < 0.625 < 0.85
So the solution is 20%, 1/4, 0.3, 5/8, 0.85
Formula for triangle perimeter is: a + b + c. In this scenario we have:
a = 3 feet 8 inches
b = 2 feet 10 inches
c = 4 feet
a + b + c =
= 3 ft + 8 in + 2 ft + 10 in + 4 ft =
= 9 ft + 18 in
We know that 1 foot is 12 inches, so we can simplify the result to this form:
10 ft + 6 in
or:
<u>10.5 feet</u>
