Try this option:
1. if to re-write the given equation into the form -68x-34=qx-p and imagine it as two linear functions: y1=-68x-34 and y2=qx-p, then
2. according to the properties of linear function (y1||y2) q=-68 and p≠34. Note, if p=34, then y1≡y2.
answer: p=34; q=-68
we know that
speed = (total distance)/(total time)
so, total distance =60+180+540+660
total distance =1440 mi
total time =10+30+90+110
total time =240 min
now, we can change time into hours
total time =
total time =4 hours
now, we can find speed
speed of the plane in miles per hour is 360 mph...........Answer
Answer:
John:discount was57.978, he paid231.912
Sam:discountwas74.9975, he paid 224.9925
Step-by-step explanation:
28.989=10
57.978 =20 100%-20%= 231.912
29.999=10%
14.9995=5% 10%×2 + 5%=74.9975 100%-25%
Answer:
A . The numbers are 6 and 7, with the smaller number as 6
B. The number is 135
Step-by-step explanation:
A. Let the numbers be a and b
adding both gives 13
a + b = 13 •••••(i)
difference between the two is 1
b - a = 1 ••••••(ii)
So we have two equations that we can solve simultaneously;
b = 1 + a; Substitute this into 1
a + 1 + a = 13
2a + 1 = 13
2a = 13-1
2a = 12
a = 12/2
a = 6
b = a + 1 = 6 + 1 = 7
The numbers are 6 and 7 while 6 is the smaller number
B.Let the number be x
Divide by 5; x/5, then subtract 2 , we get 25
x/5 - 2 = 25
x/5 = 25 + 2
x/5 = 27
x = 5 * 27
x = 135
Note: When dealing with the coordination change when the figure is in the state of reflection through x-axis, <em>only switch the signs of the y values</em>.
T(-1,-10) → T'(-1,10)
U(-1,-1) → U'(-1,1)
V(8,-2) → V'(8,2)
W(8,-10) → W'(8,10)