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Zolol [24]
3 years ago
12

Adam drafts his favorite thing tractor on the scale drawing. The drawing scale is 3 inches for each foot. If the drawing is 20 i

nches long, how long is the actual tractor trailer?
HINT: (Enter the answer in a fraction)
Mathematics
2 answers:
dexar [7]3 years ago
8 0
6 and 2 thirds 6 times 3 is 18 and 2 is left and that's 2 thirds
dimaraw [331]3 years ago
3 0
I believe it's 6.7. Not too sure though.
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do u ilke it

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The appliance store where the Scott family shops offers a 7% discount for paying cash. The Scott
Nostrana [21]

Answer:

7% = $34

100% =  100/7 X 34 = 3400/7 = $ 485.71  OR  $ 486  ANSWER.

Step-by-step explanation:

100% =  100/7 X 34 = 3400/7 = $ 485.71  OR  $ 486  ANSWER.

8 0
3 years ago
Hi can any one tell me the answer
Nimfa-mama [501]
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3 0
3 years ago
2 tickets @ $24.95 total $64.50
Zinaida [17]
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6 0
3 years ago
Read 2 more answers
Which summation formula represents the series below? 1 + 2 + 6 + 24
krek1111 [17]

Question:

Which summation formula represents the series below? 1 + 2 + 6 + 24

(a) \sum_{n=2}^{5}(n-1) !

(b) \sum_{n=0}^{3} n !

(c) \sum_{n=1}^{4}(n+1) !

(d) \sum_{n=2}^{5} n !

Answer:

Option a: \sum_{n=2}^{5}(n-1) ! is the correct answer.

Explanation:

Option a: \sum_{n=2}^{5}(n-1) !

By substituting the values of n and expanding the summation, we have,

(2-1) !+(3-1) !+(4-1) !+(5-1) !

Subtracting, we have,

1 !+2!+3 !+4 !

Expanding the factorial,

1+(2*1)+(3*2*1)+(4*3*2*1)

Simplifying, we get,

1+2+6+24

Thus, the summation \sum_{n=2}^{5}(n-1) ! represents the series 1+2+6+24

Hence, Option a is the correct answer.

Option b: \sum_{n=0}^{3} n !

By substituting the values of n and expanding the summation, we have,

0!+1!+2!+3!

Expanding the factorial,

0+1+(2*1)+(3*2*1)

Simplifying, we get,

0+1+2+6

Thus, the summation \sum_{n=0}^{3} n ! does not represents the series 1+2+6+24

Hence, Option b is not the correct answer.

Option c: \sum_{n=1}^{4}(n+1) !

By substituting the values of n and expanding the summation, we have,

(1+1) !+(2+1) !+(3+1) !+(4+1) !

Adding, we have,

2!+3!+4!+5!

Expanding the factorial,

(2*1)+(3*2*1)+(4*3*2*1)+(5*4*3*2*1)

Simplifying, we get,

2+6+24+120

Thus, the summation \sum_{n=1}^{4}(n+1) ! does not represents the series 1+2+6+24

Hence, Option c is not the correct answer.

Option d: \sum_{n=2}^{5} n !

By substituting the values of n and expanding the summation, we have,

2!+3!+4!+5!

Expanding the factorial,

(2*1)+(3*2*1)+(4*3*2*1)+(5*4*3*2*1)

Simplifying, we get,

2+6+24+120

Thus, the summation \sum_{n=2}^{5} n ! does not represents the series 1+2+6+24

Hence, Option d is not the correct answer.

Hence, the correct answer is Option a: \sum_{n=2}^{5}(n-1) !

6 0
3 years ago
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