Thirteen less than the sum of a number and 7 is -30. Find the number
1 answer:
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Answer:
- 22°
Step-by-step explanation:
<em>Refer to picture</em>
Added angles a and b as interior angles of same triangle with angle x to make solving simple.
Angle a is same as 42° since both angles intercept same arc AB.
- a = 42°
Angle b is supplementary with 64° angle as linear pair
- b = 180° - 64° = 116°
Some of the interior angles of a triangle is 180
- x + 42° + 116° = 180°
- x + 158° = 180°
- x = 180° - 158°
- x = 22°
Let and
be, respectively, the length and the width of the rectangle.
If the length is 4 inches more than the width, we have
Moreover, the perimeter of a rectangle is given by
And we can substitute to get
We know that the perimeter is 34 inches:
Which implies
Answer:
See attachment for graph
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Step-by-step explanation:
Given
Required
Graph the relationship between both parameters
First, calculate the area;
This implies that: (2, 120) i.e. 2 cans for 120ft^2.
So we have:
(0,0) and (2,120)
(0,0) implies that: 0 cans for 0 square feet
Calculate the slope:
The equation is:
So, we have:
<em>See attachment for graph</em>
