Answer:
6x+2y=34
6x=34-2y
x=(34-2y)÷6........1st euation
2x-7y=-27.....2nd equation
putting the value of x from equation 1st in equation 2nd we will get
2(34-2y)÷6-7y=-27
68-4y-42y=-27×6
-44y=-162-68
-44y=-230
y=230÷44
y=5.2
again putting the value of x in equation 1st
6x=34-2×5.2
x=23.6÷6
x=3.9
Answer:
I believe the answer would be 8 for line WE
For line QW the answer is 45 using the same method as the last quesiton
Step-by-step explanation:
This is because you would write
7x-13=15x-37
this would equal
x=3
Plug in the x value in line DW and FW and both equals 8
so logiically.I believe that line WE would equal 8.
Answer:
Correct answer is (e) all of the above.
step-by-step explanation:
As for the option (a) and (d), you can't give information you don't have. When you are not aware of the diseases, you can not give information about it.
For option (b), when the interviewer did not record the information or record it incorrect, it can not be used for survey.
For option (c), when correct questions are not asked, you can't required answers for the survey.
Summation of the above will be sources of error for the survey.
Answer:
3 : 7 =>
Anna = $180
Raman = $420
1 : 4 =>
Anna = $120
Raman = $480
Step-by-step explanation:
<u>Shares when ratio is 3 : 7</u>
Anna : Raman = 3 : 7
Sum of ratio 10
Anna's share=
![\frac{3}{10} \times 600 = \$ 180](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B10%7D%20%5Ctimes%20600%20%3D%20%5C%24%20%20180)
Raman 's share=
![\frac{7}{10} \times 600 = \$ 420](https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B10%7D%20%5Ctimes%20600%20%3D%20%5C%24%20420)
<u>Shares when ratio is 1 : 4</u>
Anna : Raman = 1 : 4
Sum of ratio = 5
Anna 's share =
![\frac{1}{5} \times 600 = \$ 120](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B5%7D%20%5Ctimes%20600%20%3D%20%5C%24%20120)
Raman's share =
![\frac{4}{5} \times 600 = \$ 480](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B5%7D%20%5Ctimes%20600%20%3D%20%5C%24%20480)