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satela [25.4K]
3 years ago
13

Solve x for 7× + 3 = 31​

Mathematics
2 answers:
olya-2409 [2.1K]3 years ago
7 0
The X after the 7 is 4

X=4
Bond [772]3 years ago
7 0

Answer:

X = 4

Step-by-step explanation:

7x + 3 = 31

Step 1: Subtract 3 from both sides.

7x + 3 - 3 = 31 - 3

7x = 28

Step 2: Divide both sides by 7.

7x/7 = 28/7

Therefore, the answer is X = 4

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W=1/9(x+y-z)<br> what’s the answer please help
KatRina [158]

Answer:

1/9x+1/9y-1/9z

Step-by-step explanation:

3 0
3 years ago
A shop owner bought 30 files and some diaries .he paid $82.50 for the files.each diary cost 10 times as much as a file.what was
Novay_Z [31]
<h3>✽ - - - - - - - - - - - - - - -  ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ✽</h3>

➷ Divide total cost by the number of files:

82.50/30 = 2.75

Multiply by 10:

2.75 x 10 = 25.5

The cost was $27.50

➶ Hope This Helps You!

➶ Good Luck (:

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7 0
3 years ago
Write the numbers 57,000,000,000 and 19,000 in scientific notation. Then show how to divide 57,000,000,000 by 19,000 using prope
LenaWriter [7]

Answer:

the first number is 57 to the ninth power and the second is 19 to the third power, not to sure about the dividing but a quick google search should do the trick

Step-by-step explanation:

8 0
3 years ago
Which statement is valid when a circumscribed circle of an acute triangle is
Anni [7]
<h3>There are two answers: Choice C, Choice D</h3>

Explanation:

For any acute triangle, the center of the circle is always inside the triangle.

For any right triangle, the center of the circle is the midpoint of the hypotenuse. The hypotenuse is the diameter of the circle.

For any obtuse triangle, the center of the circle is outside the triangle.

----------

Let's look at the answer choices more closely

A. False. This is only true if we have a right triangle as mentioned earlier.

B. False. This describes an inscribed circle.

C. True. As stated earlier.

D. True. This is based on how the circumscribed triangle is defined. It is set up to be the circle that goes through all three vertex points of a triangle. In other words, it is the smallest circle to completely enclose the given triangle.

4 0
3 years ago
What do you need to know?
bulgar [2K]

wym are you asking a question?

6 0
3 years ago
Read 2 more answers
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