mary jo decided to solve the equation 3x-2=-x-6 by entering each of the exppressions into her graphing calculator. to solve the equation as a system, she entered y=3x-2 and y= -x-6. when she used the calculator to find the intersection, she found x=-1 and y=-5. is she right? if so show how she is correct
Answers
3x-2=-x-6
3x+x=2-6
4x=-4
x=-4/4=-1
y=3*(-1)-2=-3-2=-5
y=-(-1)-6=1-6=-5
She is right.
Answer: Yes she is correct.
Explanation:
y=-5
x= -1
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Ms.groves has trays of paint for students in her art class.eachieve tray had 5 colors. One of the colors is purple. What fraction of the colors in 20 trays is purple
Answers
a=cost per adult ticket
value=(students vlue)+(adults value)
student value=(cost per student) times number of students
adult value=(cost per adult) times number of adults
you sell 8 adult and 6 students and that is a value of 126
8a+6s=126
friend sell12 adult and 13 student and get 209
12a+13s=209
so we have
8a+6s=126 and
12a+13s=209
it might help to simplify the first equaiton by dividing by 2
4a+3s=63
we have
4a+3s=63
12a+13s=209
multiply first equaton by -3
-12a-9s=-189
add to secont equaiton
12a+13s=209
-12a-9s=-189 +
0a+4s=20
4s=20
divide 4
s=5
each student ticket costs $5.00
Answers
3/4 = 75%
So something in between that could be 2/3 (which equals 66.67% )
A few others could be: 3/5 ( equals to 60% ) , 7/10 ( equals 70%)
Hope that helps :)
Answers
For this case, what you must do is place both numbers in a number line.
The largest number will be the number that is located farthest from the number 0.
We observe that the number that is furthest from zero is 5/8.
Therefore, it is fulfilled:
Answer:
See attached image to see the numeric line.
conclude by transitive property
that AACB = .
Answers
Answer:
Nothing
Step-by-step explanation:
<PRQ and <RQP are not the same angle, so we cannot apply the transitive property.
Answers
10025 divided by 5 sets of data is 2005.
The mean or average is 2005
A 2
B 1
C -1
D -7
Which numbers belong to the domain of the revolution {(8,-5),(4,2),(4,8),(-7,6)}
A 4.
B 2
C -5
D -7
Answers
The range are y's. The y's in {(4,-1),(-7,2),(1,2),(2,1)} are -1,1,2 ⇒ A,B,C
2.
The domain are x's. The x's in {(4,-1),(-7,2),(1,2),(2,1)} are -7,1,2,4 ⇒ A,B,D