Answer:
Step-by-step explanation:
identify the known ratio and the unknown ratio.
Set up the proportion.
Cross-multiply and solve.
Check the answer by plugging the result into the unknown ratio.
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is the steps to solve your answer
Answer:
2) First option
3) Second option
Step-by-step explanation:
5² = 625
13 × 8 × 5 = 520
Answer:
d = 16.5
Step-by-step explanation:
Add -35.5 to both sides of the equation, then simplify.
... d + 35.5 - 35.5 = 52 - 35.5
... d + 0 = 16.5
... d = 16.5
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In general, if something unwanted is added, adding the opposite will undo that operation.
Yes I have graphed them and they form a 90 degree angle
Answer:
.
Don required 673 of 9 inch tiles to cover an area of 400 square feet, when spacing the tiles a quarter inch apart.
Step-by-step explanation:
Given:
The given function is:
Here, 
represent the area to be covered, 
represent the number of tiles required to cover the given area.
So, if 
, it means that the area to be covered is 400 square units.
Now, if we find 
, it means we need to find the number of 9 inch tiles to cover area of 400 units.
So, we plug in 400 for to evaluate .
Therefore, it means that 673 of 9 inch tiles are required to cover an area of 400 square feet, when spacing the tiles a quarter inch apart.
