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Anestetic [448]
2 years ago
11

I need help on these 2 questions how did I get it wrong? and for question 3 I'm not supposed to have the = sign so what am I sup

posed to replace it with?​

Mathematics
2 answers:
dmitriy555 [2]2 years ago
5 0

Answer:

3.

m + 7 ≥ 20

Subtract 7 on both sides,

m ≥ 20 - 7

m ≥ 13

The answer is m ≥ 13.

( you need to include both > and =, that is ≥ )

4.

2.1x = 23.1

Divide 2.1 on both sides,

x = 23.1 / 2.1

x = 11

trasher [3.6K]2 years ago
5 0

Answer:

For problem #3, we are given m+7\geq 20 so we would just subtract 7 from both sides to get rid of the 7 on the left and that would end up subtracting 7 from 20 also leaving us with m\geq 13.

For problem #4, we are given 2.1x=23.1 so we would just divide both sides by 2.1 which would get rid of the 2.1 on the left and that would also make us divide 23.1 by 2.1 leaving us with x=11.

<u><em>Hope this helps!  Let me know if you have any questions</em></u>

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vladimir1956 [14]

Answer:

y = -2x + 3 is the required equation

Step-by-step explanation:

From the graph we will get two ordered pairs

If we see that When x=0 then y=3  and when x = 1 then  y=1

Now from this we can find the slope of the Graph

So slope of graph = (y2 - y1) / (x2-x1)

                               =(1-3) / (1-0)

                                =-2

So

Slope = m = -2

Now the equation is

y = mx + b

We have to find the value of b

as we have two ordered pairs we can take any of it to find the value of b because line passes through those points

taking (0,3) as a point

y= mx + b

put values

3 = -2*(0) + b

so

b=3


Now the equation of the line in this form is

y = mx + b

which is

y = -2x + 3

5 0
3 years ago
The answer is. 90 and 80 on I-Ready hope this helped! :)
goldenfox [79]

you did a question not an answer pal sorry

7 0
3 years ago
-2x + 3y = 1
Andre45 [30]

Answer:

-2x+3y =1.......(1)

y=3x-9........(2)

Now,

putting the value of y in equation (1),

-2x+3(3x-9)=1

or,-2x+9x-27=1

or,7x-27=1

or,7x=28

x= 4

Now putting the value of X in equation (2),

y=3×4-9

= 12-9

=3

(x,y)=(4,3)

6 0
3 years ago
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Shalnov [3]
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8 0
3 years ago
Explain what makes 3.23 a decimal number.
nignag [31]

Answer:

the point

Step-by-step explanation:

the point makes a decimal a decimal

7 0
3 years ago
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