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cluponka [151]
3 years ago
13

Ami purchases 27 T-shirts for a certain amount of money. Using m for the total amount of money in dollars that Ami spent on T-sh

irts, write an expression that represents how much one T-shirt costs
Mathematics
2 answers:
swat323 years ago
8 0
Let T=Num of T-shirts 27
Let M=Total amount of money spent for 27 T-shirts.
Let X=Cost of 1 T-shirt

M(Total cost)/T(#of T-shirts) = X (Cost of one shirt)
juin [17]3 years ago
4 0

your expression would be-



27/m

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I think of a number. I add 3 then divide it by 2. My answer is 12. Form an equation and solve it to find my number.
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41 + 2y = 0<br> - 4x – 9y= - 28<br> Solve each system by elimination
Iteru [2.4K]

<em><u>Question:</u></em>

4x + 2y = 0

- 4x – 9y= - 28

Solve each system by elimination

<em><u>Answer:</u></em>

The solution is x = -2 and y = 4

<em><u>Solution:</u></em>

<em><u>Given system of equations are:</u></em>

4x + 2y = 0  ------ eqn 1

-4x – 9y = - 28  ------- eqn 2

We have to solve the system of equations by elimination method

Add eqn 1 and eqn 2

4x + 2y -4x -9y = 0 - 28

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<em><u>Substitute y = 4 in eqn 1</u></em>

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4 0
3 years ago
Can three go into 5 in division
m_a_m_a [10]
Yes but it would result in a decimal.
4 0
3 years ago
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Will markk the brainliest
ivolga24 [154]

Answer:

  1. the range of f^-1(x) is {10, 20, 30}.

  2. the graph of f^-1(x) will include the point (0, 3)

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Step-by-step explanation:

1. The domain of a function is the range of its inverse, and vice versa. The range of f^-1(x) is {10, 20, 30}.

__

2. See above. The domain and range are swapped between a function and its inverse. That means function point (3, 0) will correspond to inverse function point (0, 3).

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3. The n-th term of an arithmetic sequence is given by ...

  an = a1 +d(n -1)

You are given a1 = 2, a12 = 211, so ...

  211 = 2 + d(12 -1)

  209/11 = d = 19 . . . . . solve the above equation for the common difference

Now, we can use the same equation to find n for an = 135.

  135 = 2 + 19(n -1)

  133/19 = n -1 . . . . . . . subtract 2, divide by 19

  7 +1 = n = 8 . . . . . . . . add 1

135 is the 8th term of the sequence.

3 0
3 years ago
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