Answer:
356.82
Step-by-step explanation:
3x(1.05) = 3.15x
1.05x + 1.05x + 1.05x = 3.15x
<h2>
Answer:</h2>
(a) Describe a property of squares that is also a property of rhombi =
- The sides are the same length. The opposite angles are equal.
- Each of the diagonals is the same length and intersects at right angles to each other.
- The point of intersection of the diagonals divides the diagonal into two equal parts.
- Has two axes of symmetry.
- Can be framed with exactly four ways.
- Has a half-turn symmetry.
(b) Describe a property of squares that is not a property of rhombi =
- Has 4 axes of symmetry and rotational symmetry level 4
- Can occupy it in 8 ways
- All four sides are the same length (AB = SM = CD = AD)
- Parallel sides (AB // CD and BC // AD)
- Each angle is the same size as a square
- The diagonals are the same length (BD = AC)
- The diagonals intersect at right angles and bisect the length (AO = OC = BO = OD)
(c) Describe a property of squares that is not a property of rhombi =
- Opposite sides are parallel and the same length (AB = DC and AB // DC, AD = BC and AD // BC) The opposite angles are equal ( and).
- Two adjacent angles are 180o or are complementary.
- Sum of all angles = 360o Its diagonals divide the parallelogram into two equal parts.
(d) Describe a property of rectangles that is not a property of parallelograms =
- Has four sides that are the same length.
- Has four right angles.
- Has two diagonals that intersect at right angles to each other.
- Has quadruple symmetry rectangular.
The rule (x, y) ⇒ (x-2, y+3) will translate the way you want.
The cost per foot of redwood and of pine is $3.5 and $1.5 respectively.
<h3>How to solve simultaneous equation?</h3>
let
- cost of redwood = x
- cost of pine = y
50x + 70y = 280
100x + 60y = 440
Multiply (1) by 2
100x + 140y = 560
100x + 60y = 440
subtract to eliminate x
80y = 120
y = 120/80
y = $1.5
substitute y = 1.5 into (1)
50x + 70y = 280
50x + 70(1.5) = 280
50x + 105 = 280
50x = 280 - 105
50x = 175
x = 175 / 50
x = $3.5
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