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natima [27]
2 years ago
7

Help me i need this homework for today pls my peeps

Mathematics
2 answers:
pogonyaev2 years ago
7 0

Answer:

3x-5=7 is x = 4

Step-by-step explanation:

Add 5 to both sides of the equation

3x-5+5=7+5

Simplify

3x=12

Divide both sides of the equation by the same factor

3x over 3 = 12 over 3

Simplify

x=4

navik [9.2K]2 years ago
4 0
X = 4 because 3 times 4 equals 12 and 12 minus 5 equals 7
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Write an equation of the line passing through the points ( -5, -25 ),(0,0), and( 3,15)?
Akimi4 [234]

Answer:

Y=5X because the slope is 5 and the Y-intercept is 0

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2 years ago
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max2010maxim [7]

Answer:

The value of m in the expression is 5

Step-by-step explanation:

Given expression as :

3 + ( 4 + 5 ) = ( 3 + 4 ) + m

Or,  3 + ( 9 ) = ( 7 ) + m

Or,  12  = 7 + m

∴   m = 12 - 7 = 5

Hence The value of m in the expression is 5   Answer

8 0
3 years ago
Prove the following statement.
jolli1 [7]
<h2>Step-by-step explanation:</h2>

As per the question,

Let a be any positive integer and b = 4.

According to Euclid division lemma , a = 4q + r

where 0 ≤ r < b.

Thus,

r = 0, 1, 2, 3

Since, a is an odd integer, and

The only valid value of r = 1 and 3

So a = 4q + 1 or 4q + 3

<u>Case 1 :-</u> When a = 4q + 1

On squaring both sides, we get

a² = (4q + 1)²

   = 16q² + 8q + 1

   = 8(2q² + q) + 1

   = 8m + 1 , where m = 2q² + q

<u>Case 2 :-</u> when a = 4q + 3

On squaring both sides, we get

a² = (4q + 3)²

   = 16q² + 24q + 9

   = 8 (2q² + 3q + 1) + 1

   = 8m +1, where m = 2q² + 3q +1

Now,

<u>We can see that at every odd values of r, square of a is in the form of 8m +1.</u>

Also we know, a = 4q +1 and 4q +3 are not divisible by 2 means these all numbers are odd numbers.

Hence , it is clear that square of an odd positive is in form of 8m +1

3 0
3 years ago
there are 320 seats in the airplane. passengers are taking 3/5 of the seats. There are 47 seats being used by flight attendants.
iogann1982 [59]

Answer: 124

Step-by-step explanation:

Multiply 320 by 3/5 (.6) and you will get 192. Then you subtract 320 by 47 and get 316. You subtract 192 from 316 and get 124.

8 0
3 years ago
50 points for the person to answer these :)
svetoff [14.1K]

I'm assuming you don't still need these? Sorry I didn't see this in time

7 0
3 years ago
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