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arsen [322]
3 years ago
7

If 3 times a certain number is increased by 4 the result is 28. What is the number? If xis "the number," which of the following

equations could be used to solve for the number? 3 x + 4 = 28 KOE 3 X= 4 + 28 30 x + 4) = 28​
Mathematics
1 answer:
Dimas [21]3 years ago
8 0

Answer:

The first one (3x+4=28)

Step-by-step explanation:

3x+4=28

28-4=24

24/3=8

x=8

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andy constructed a triangle angle 1 and 2 are the same but angle 3 has a measurement of 100 degrees what is the measurement of a
attashe74 [19]
The triangle has one angle of 100 degrees, and the other two are equal. 
We know that the angles of a  triangle always add up to 180. To find the measurement of angle 1 and 2, let's solve for this equation. 
2x + 100 = 180, where x=angle 1 = angle 2. Subtract 100 from both sides
2x = 80                                                           Divide both sides by 2
x = 40
5 0
3 years ago
The sum of two consecutive integers is – 7. Find the numbers
Y_Kistochka [10]

n,n+1 - two consecutive integers

n+n+1=-7\\2n=-8\\n=-4\\n+1=-3

<u>-4 and -3</u>

7 0
3 years ago
Use the following expression to
IgorLugansk [536]

Answer:

part A :BODMAS ( Bracket of Division Multiplication Addition Subtraction )

part b; Bracket (2+3.2) = - 2- 3.2

= 16- 2-3.2 +30-5

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16-2(-33.2)30-5

14-33.2 +30-5

14-33.2 +25

-19.2+25

-44.2

Step-by-step explanation:

THE FOLLOWING EQUATION CAN ONLY BE SOLVED USING BODMAS

3 0
2 years ago
Can someone please help me on e and f i dont understand it and pls explain
Lemur [1.5K]
For parts A, B, C, and D you most likely created a line. What question E is asking is for you to create a line that is perpendicular to the line you already created that also passes through the point (1,1). What is important to understand here is that the slope of the perpendicular line is the negative reciprocal of the original line's slope... if the original slope is (-4/3) than the perpendicular slope is (3/4)... then you should just plug that new slope into point-slope form or slope-intercept form to get your equation... y-y1 = m(x-x1) ... y-1= (3/4)(x-1) ... so it would be y=(3/4)x + 1/4 then for part f just convert into standard form which is just manipulating the variables... look up standard form equation on Google and manipulate the variables from there.
4 0
3 years ago
Which expression is equal to (x-3)(x-2)/(x+3)(x-3)
Tju [1.3M]

Answer:

\frac{x-2}{x+3}

Step-by-step explanation:

given \frac{(x-3)(x-2)}{(x+3)(x-3)}

the factor (x - 3) can be cancelled from the numerator/ denominator leaving

\frac{x-2}{x+3}


3 0
3 years ago
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