Answer:
x = -52
y = -11
Step-by-step explanation:
Let 1st number = x
Let 2nd number = y
Hence:
x+y=-63
x-y=-41
y = x+41
(Apply Simultaneous Equations)
x+(x+41)=-63
2x+41=-63
2x=-63-41
2x=-104
x=-104/2
x=-52
Now:
y=-52+41
y=-11
<span>17<=3-2x<=21
subtract 3
14<=-2x<=18
divide by 2
7<=-x<=9
now mutiply whole inequality by -1, this will reveres the inequality
-7>=x>=-9
or -9<=x<=-7
so there are mistakes in the line
the corrected lines are
17 less than or equal to 3 - 2x and 3 - 2x less than or equal to 21 (line one)
14 less than or equal to -2x and -2x less than or equal to 18 (line two)
-7 greater than or equal to x and x greater than or equal to -9 (line three)</span>
Answer:
11 cars
Step-by-step explanation:
There are 20 cars in my building's parking lot, 15 cars are 4-door, then
cars are 2-door.
5 cars are 2-door, 4 of them are 2-door and white, then
car is 2-door and red.
12 cars are red, 1 car is 2-door and red, then
cars are 4-door and red.
Answer:
14 boxes
Step-by-step explanation:
3/7 (0.428571) Miles on Monday
2/6 = 1/3 (.333333) Miles on Tuesday
Subtract both numbers
.428571 - .333333 +
[Answer]: 0.095238
or 2/21 More miles on Monday.