All of the right triangles are similar.
.. (long side)/(short side) = 20/x = x/5
.. x^2 = 100 . . . . . . . . "cross multiply"
.. x = √100
.. x = 10
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The geometric mean of "a" and "b" is √(ab). x is the geometric mean of 20 and 5, the segments of the hypotenuse of the larger right triangle.
Answer:
3*w
Step-by-step explanation:
Kamilah now weighs the triple of what she weighed on her first birthday. That means we need to multiply the first weight by 3. As the first weight is w, she now weighs 3*w.
Another possible expression is to sum 3 times w, that is w + w + w (it's equal to 3*w).
Picture 1: 5 by 10
Picture 2: 32.5 by 65
Divide two lengths or two widths.
65/10= 6.5
That is the ratio.
To check, multiply the width of Picture 1 by the ratio and see if it gives you the second picture's width.
5 x 6.5=32.5
Hope this helps.
Answer:
$133.9
Step-by-step explanation:
<em>I believe the unit being used in the problem above is dollar ($).</em>
The problems above can be easily solved by using <em>multiplication operation </em>and <em>addition operation </em>afterwards.
Given: Bermuda sod = <em>$2.25 per piece</em>
Zoysia sod = <em>$3.32 per piece</em>
Let's solve for the cost of buying the Zoysia sod.
20 pieces x $3.32 per piece = $45 dollars
The total cost of the Zoysia sod that Becky will buy is $66.4.
Next, let's solve for the cost of buying the Bermuda sod.
30 pieces x $2.25 per piece = $67.5
The total cost of the Bermuda sod that Becky will buy is $67.5.
Let's get the total cost.
$66.4 + $67.5 = $133.9
<em>It will cost Becky $133.9 to buy 20 pieces of Zoysia sod and 30 pieces of Bermuda sod.</em>
