ANSWER
EXPLANATION
The area of the two tra-pezoidal faces
The area of the 5 by 6.4 rectangular face
The area of the two square faces
The area of the 9 by 5 rectangular face is
The surface area of the design is:
Answer:
I THINK its 60
Step-by-step explanation:
x = 36.2 .
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Explanation:
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2x - 1 + 3x = 180 ;
Combine the "like terms" on the left-hand side of the equation:
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+2x + 3x = + 5x ;
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And rewrite:
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5x - 1 = 180 ;
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Add "1" to each side of the equation:
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5x - 1 + 1 = 180 + 1 ;
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5x = 181 ;
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Divide EACH SIDE of the equation by "5" ;
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5x / 5 = 181 / 5 ;
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to get:
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x = 36.2 .
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Answer:
The required expression is s = m + n
Step-by-step explanation:
Let m be the number of index cards stuffed in the envelopes and n be the number of extra index cards.
Let s be the total number of index cards.
Then, s = m + n represents the number of index cards the boys started with.
For Marty,
He has 15 stuffed envelopes and 4 extra index cards.
So, m = 15, n = 4
Therefore, s = 15 + 4 = 19
Marty started with 19 cards.
For Stewart,
He has 12 stuffed envelopes and 6 extra index cards.
So, m = 12, n = 6
Therefore, s = 12 + 6 = 18
Steward started with 18 cards.
