Answer:
or 
Step-by-step explanation:
d=5m+11n
-11n=5m-d
11n=-5m+d
It won't be wrong if you also put
Answer:
11.1m/s
Step-by-step explanation:
Given parameters:
Distance of store = 5miles
Time to store = 
hr
Time from store = 
hr
Unknown:
Average speed = ?
Solution:
Average speed is the total distance divided by the total time taken.
Average speed = 
Total distance = distance to store + distance from store = 5 + 5 = 10miles
Total time taken = hr + hr = 
hr
Average speed = 
= 10 x 
= 11.1m/s
Answer: (6, -6)
Step-by-step explanation: You didn’t give options or the scale factor, but I believe I’ve seen this problem before. If that’s an option, I believe it should be that one. :)
Answer:
The input is 1/7
Step-by-step explanation:
If y =f(x)
Given that f(x) = -7x -2, then y = -7x-2
x is the input
y is the output
Given the output y = -3, we are to find the input value x
Recall that y = -7x-2
On substituting the value of y into the equation
-3 = -7x - 2
-7x = -3+2
-7x = -1
x = -1/-7
x = 1/7
Hence the input is 1/7
Answer:
a) x = 62
b) x = 33
Step-by-step explanation:
Hi there!
a) Let´s write the equation:
√(2x-3) = 11
Square both sides
2x - 3 = 121
add 3 to both sides of the equation
2x = 124
divide by 2 both sides
x = 62
Let´s check:
√(2x-3) = 11
x = 62
√(2(62)-3) = 11
√(124-3) = 11
√121 = 11
11 = 11
x = 62 satisfies the equation
b) Let´s write the equation:
∛(6 - x) = -3
Cube both sides
6 - x = -27
subtract 6 to both sides
-x = -27 - 6
-x = -33
divide by -1 both sides
x = 33
Now, let´s check the result:
∛(6 - x) = -3
x = 33
∛(6 - 33) = -3
∛(-27) = -3
-3 = -3
x = 33 satisfies the equation
