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natima [27]
2 years ago
8

Trey had answered 15 E-mails. This is 20% of E-mails he must answered. How many E-mails does he need to answer?

Mathematics
1 answer:
Elis [28]2 years ago
3 0

Answer: 75


Step-by-step explanation: 100 / 20 =5

15x 5= 75


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gregori [183]

Answer:

A. A reflection over the x-axis

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2 years ago
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Solve each equation for the indicated variable. u = -3a - 3 , for a
MAXImum [283]

Answer:

a = \frac{u + 3}{-3}

Step-by-step explanation:

Isolate the variable, a. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operation and stands for:

Parenthesis

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First, add 3 to both sides of the equation:

u = -3a - 3

u (+3) = -3a - 3 (+3)

u + 3 = -3a

Next, divide -3 from both sides of the equation:

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a = \frac{u + 3}{-3}  is your answer.

~

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3 years ago
Need help ASAP! Directions in picture ;)
GuDViN [60]
The supplement of < 72 has the same measure as < (4x + 8). Therefore, < (4x + 8) must equal 108°. We can establish the following equality statement to solve for x:

< (4x + 8) + < 72° = 180°

Combine like terms:
4x + 80 = 180°

Subtract 80 from both sides:

4x + 80° - 80° = 180° - 80°

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Divide both sides by 4 to solve for x:

4x/4 = 100/4

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To verify whether the value of x is correct, substitute its value into the equality statement:

< (4x + 8)° + < 72° = 180°

< [4(25) + 8]° + < 72° = 180°

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< 108° + < 72° = 180°

180° = 180° (True statement. Therefore, the correct answer is x = 25).

Please mark my answers as the Brainliest if you find this helpful :)
6 0
2 years ago
2-3. The triangles below are drawn to scale and congruent sides and angles are indicated with tick marks.
mihalych1998 [28]

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Step-by-step explanation:

The triangles are congruent because 2 corresponding sides and one corresponding angle are given as congruent in an order respectable as a congruency statement(the SAS part).

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2 years ago
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natima [27]

Answer:

6 questions

Step-by-step explanation:

30 x 0.2 = 6

3 0
2 years ago
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