8 Feets
Step-by-step explanation:
The midsegment is 1/2 of the top and bottom
segments
=>
Trevor earns R80 per hour. Calculate how many hours he must work to earn R720
2 answers:
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Answer:
a) t=98
b) b=32
Step-by-step explanation:
a) 4t/7 -20=36r
r=1
4t/7-20=36
=36
4t-140=252
4y=392
t=98
b) 2k/5=b/2-12
k=10
20/5=b/2-12
4=
8=b-24
b=32
Answer:
{(-2,3), (7,-6)
} -----> y - 15 = - + 4x
x + y = 1
{(-5, 8). (3,0)
} ----> y + 12 = + x
x + y = 3
{(-2,5),(3,-5)
} -----> y + 5 = - 3x
2x + y = 1
{(2, 3), (8,9)} -----> y-17 = - 9x
-x + y = 1
Step-by-step explanation:
The simplest way to find the answer is by solving all the equations and finding the value of x and y for each of them.
Solving the equations ->
y + 12 = + x
x + y = 3
Substitute y = 3-x from second equation to first and solving the quadratic equation obtained i.e solving + 2x -15 = 0 , we get values of x = -5 , 3 and the corresponding values of y by substituting values of x in second equation , y = 8, 0 respectively. So, solution matched = {(-5, 8). (3,0)
}.
Similarly solving other equations using exactly the same method as above we get the following solutions,
For,
y - 15 = + 4x
x - y = 1
we don't get any integer solution for this hence it has no match.
For,
y + 5 = - 3x
2x + y = 1
we get x = 3,-2 and corresponding y = -5,5
So, solution is {(-2,5),(3,-5) }
For,
y- 6 = – 3x
x + 2y = 2
we again don't get any integer solution for x and y so this has no match.
For,
y-17 = - 9x
-x + y = 1
we get x = 2,8 and corresponding y = 3,9
So, {(2, 3), (8,9)} is the solution match.
Lastly for,
y - 15 = - + 4x
x + y = 1
we get x = -2,7 and corresponding y = 3,6
So, {(-2,3), (7,-6)} is the solution match.
Answer:
1.3inch
Step-by-step explanation:
