Answer:
$42.50
Explanation:
If you divide 34 by 4 you get 8.5. Then you just add 8.5 to 34 to get 42.50.
Answer:
74
Step-by-step explanation:
84+84=168
316-168=148
148/2=74
Square root of 121 is 11.
11-7=4
A side of the original square is 4 feet.
Answer:
Its length is 37.5 cm.
Step-by-step explanation:
If two rectangles are similar, their sides are proportional, that is, they have equal ratios. So
The first rectangle has a length of 15 cm and a width of 10 cm. The width of the second rectangle is 25 cm.
So
![\frac{15}{10} = \frac{l}{25}](https://tex.z-dn.net/?f=%5Cfrac%7B15%7D%7B10%7D%20%3D%20%5Cfrac%7Bl%7D%7B25%7D)
![10l = 25*15](https://tex.z-dn.net/?f=10l%20%3D%2025%2A15)
Simplifying by 10.
![l = 2.5*15 = 37.5](https://tex.z-dn.net/?f=l%20%3D%202.5%2A15%20%3D%2037.5)
Its length is 37.5 cm.
Answer: A
Step-by-step explanation: