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amid [387]
3 years ago
10

1. the product of 7 and a number

Mathematics
2 answers:
dlinn [17]3 years ago
8 0
1. 7n
2. 7+ n
3. n - 7
4. 2n + 7
Rasek [7]3 years ago
4 0
We can let the "a number" be represented by the variable x.
1) 7x
2) 7 + x
3) x - 7
4) 7 + 2x
Hope this helped and have a great day!
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Please solve with explanation
Inga [223]

Answer:

a. Simplify each term. 49/2+0

Add 49/2 and 0.

49/2

The result can be shown in multiple forms.

Exact Form:

49/2

b. Replace the variable a with −13 in the expression.

−(−1/3)²b²−3(−1/3)³b²

Replace the variable b with −1 in the expression.

−(−1/3)²(−1)²−3(−1/3)³(−1)²

Simplify each term. −1/9+1/9 = 0

Combine fractions. 0

Step-by-step explanation:

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3 years ago
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olchik [2.2K]
First question
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RideAnS [48]

Answer:

It should be 40%

Step-by-step explanation:

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3 years ago
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3 years ago
The airplane in the scale drawing has a wingspan of a feet and a tail span of b feet. If the tailspin in the drawing is 2 inches
xeze [42]

Correct answer is: actual wingspan of airplane is 6 inches.

Solution:-

We are given that wingspan is 'a' feet and tail span is 'b' feet in a scale drawing.

And we are also given that tail span is 2 inches that is b=2 inches and \frac{a}{b}=3

Let us plugin the b value in above equation.

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a=3X2=6 inches.

Hence actual wingspan of airplane is 6 inches.

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