Okay sure, whats the question
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Given information
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3 bags + 4 pens = $950
4 bags + 3 pens = $1150
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Form the 2 equations
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Let x be the cost of 1 bag.
Let y be the cos of 1 pen.
3x + 4y = 950
4x + 3y = 1150
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Solve for x and y
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3x + 4y = 950 -------------- (1)
4x + 3y = 1150 ------------- (2)
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Equation (1) x 4
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12x + 16y = 3800 ------------- (1a)
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Equation (2) x 3
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12x + 9y = 3450 ------------- (2a)
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Equation (1a) - (2a)
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(12x + 16y) - (12x + 9y) = 3800 - 3450
7y = 350
y = 350 ÷ 7
y = 50
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Substitute y = 50 into equation (1)
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3x + 4 (50) = 950
3x + 200 = 950
3x = 950 - 200
3x = 750
x = 250
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Find cost of a bag and a pen
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Bag = x = $250
Pen = y = $50
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Answer: The bag cost $250 and the pen cost $50
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Answer/Step-by-step explanation:
1. Side CD and side DG meet at endpoint D to form <4. Therefore, the sides of <4 are:
Side CD and side DG.
2. Vertex of <2 is the endpoint at which two sides meet to form <2.
Vertex of <2 is D.
3. Another name for <3 is <EDG
4. <5 is less than 90°. Therefore, <5 can be classified as an acute angle.
5. <CDE is less than 180° but greater than 90°. Therefore, <CDE is classified as an obtuse angle.
6. m<5 = 42°
m<1 = 117°
m<CDF = ?
m<5 + m<1 = m<CDF (angle addition postulate)
42° + 117° = m<CDF (Substitution)
159° = m<CDF
m<CDF = 159°
7. m<3 = 73°
m<FDE = ?
m<FDG = right angle = 90°
m<3 + m<FDE = m<FDG (Angle addition postulate)
73° + m<FDE = 90° (Substitution)
73° + m<FDE - 73° = 90° - 73°
m<FDE = 17°
Answer:
98.42
Step-by-step explanation:
7 × 14.6 =
= 7 × (7 + 7 + 0.6)
= 7 × 7 + 7 × 7 + 7 × 0.6
= 49 + 49 = 0.42
= 98.42
Answer:
So sorry but I have no idea, also have a great weekend!
