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Zinaida [17]
3 years ago
5

What’s the answer for GCF 55 and 77

Mathematics
2 answers:
IgorLugansk [536]3 years ago
8 0

Answer:

simple 11

Step-by-step explanation:

sammy [17]3 years ago
3 0
It is 11. The GCF is 11
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I’ll give brainliest
Serjik [45]

Answer:

The graph of the system of equations solves the equation  -\frac{1}{4} x + 2 = 2x - 7 ⇒ C

Step-by-step explanation:

<em>Let us revise some important notes about the slope and y-intercept of a line</em>

The form of the linear equation is y = m x + b, where m is the slope and b is the y-intercept

  • If the line has a positive slope then its direction will be to the right
  • If the line has a negative slope then its direction will be to the left

The y-intercept (0, b) is the the point of intersection between the line and the y-axis

  • If the line cuts the y-axis at a point above the x-axis, then b is positive
  • If the line cuts the y-axis at a point down the x-axis, then b is negative

<em>To solve our question without any calculation, let us find the direction of the slopes and their y-intercepts</em>

∵ The direction of the blue line is to the left

→ That means m in the equation is negative

∴ Its slope is negative

∵ The line intersects the y-axis at point (0, 2)

→ That means b in the equation = 2

∴ The number in the equation is 2

→ Look at the answer we have two answers have negative slope and

   y-intercept 2 in the left hand side ⇒ C and D

∴ The equation of the blue line is represented by the left side -\frac{1}{4} x + 2

→ that means the equation of the red line is represented by the right side

∵ The direction of the red line is to the right

→ That means m in the equation is positive

∴ Its slope is positive

→ Only C has a positive slope in the right side

∴ The equation of the red line is represented by 2x - 7

The graph of the system of equations solves the equation  -\frac{1}{4} x + 2 = 2x - 7

<u><em>Another way:</em></u>

<em>You can solve each equation to find the value of x, then substitute it in one side of the equation to find y , the values of x and y must be (4, 1) as the point of intersection of the two lines in the graph</em>

8 0
3 years ago
Determine the standard form of the equation of the line that passes through (6, -9) and (-8, 6)
horrorfan [7]

9514 1404 393

Answer:

  A.  15x +14y = -36

Step-by-step explanation:

Since we are given two points, we can start with the 2-point form of the equation for a line.

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  y = (6 -(-9))/(-8 -6)(x -6) +(-9)

  y = 15/-14(x -6) -9

Multiplying by -14, we have ...

  -14y = 15x -90 +126

Adding 14y-36 to both sides gives ...

  -36 = 15x +14y . . . . matches choice A

The standard-form equation is ...

  15x +14y = -36

_____

<em>Additional comments</em>

It can be easier to start with the form ...

  (Δy)x -(Δx)y = (Δy)x1 -(Δx)y1 . . . . . where Δx = x2-x1 and Δy = y2-y1

This gives ...

  (6+9)x -(-8-6)y = 15(6) +14(-9)

  15x +14y = -36 . . . simplified

__

You can also start with the slope-intercept form or the point-slope form, if you're more familiar with those. The result will be the same. I find it handy to be familiar with a number of different forms of the equation for a line.

4 0
3 years ago
- A1 Plumbing Service charges $35 per hour plus a $25
Alja [10]

Answer: 5 hours

Step-by-step explanation: c=35•h+25

25=40•h-35•h; 25=5•h

3 0
3 years ago
PLZ HELP MEH WITH MATH XD
irina [24]
To add any fraction You need to make sure that the denominator of the fractions are same. ( denominator in your sum is 19 )

10/19 + 3/19 ( we have the same denominator )
we can also write this problem like
( 10 + 3 ) / 19  { add the numerators together }
13 / 19

So correct option is B.

hope this helped..  :)
6 0
3 years ago
Read 2 more answers
What is rounding for math
Sedaia [141]

Answer:

Step-by-step explanation:

Rounding means making a number simpler but keeping its value close to what it was. The result is less accurate, but easier to use. Example: 73 rounded to the nearest ten is 70, because 73 is closer to 70 than to 80. But 76 goes up to 80. There are many ways to round.

5 0
3 years ago
Read 2 more answers
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