At the start the temperature is -7 overnight it gets 12 degrees warmer so -7+12 =5 degrees than during the day it gets 12 degrees warmer so 5+12= 17 degrees
Let's actually find the solution of
<span>2x - 6y = 8
-x + 3y = 10
Let's use the addition/subtraction method. Multiply the 2nd equation by 2, obtaining
</span> 2x - 6y = 8
-2x + 6y = 20
--------------------
0 + 0 = 28
Since this can never be true, the system of linear equations
2x - 6y = 8
-x + 3y = 10
has no solution.
Answer:
8.94 , 7.94
Step-by-step explanation:
Let the integers be x and x-1
then
x(x-1)=71
x^2-x-71=0
Solving the above quadratic equation by quadratic formula gives:
x=
x=
x= 8.94 and x=-7.94
as given, integer is positive so taking
x=8.94
x-1= 7.94
Hence the two integers are= 8.94 and 7.94!
Here are some guesses I have:
92 / 4 = 23
120 / 4 = 30
My guess is 23 or 30 :-)
18.) The area of one of the triangles would be half of the area of the parallelogram, because the two triangles are congruent.
20.) The formula for the area of a parallelogram is:
A = b • h
110.5 = 13h
110.5 / 13 = 8.5
110.5 = 13 • 8.5
And because this is a measurement of the height, not the area, it is just meters (m)
So, the full answer is 8.5 m
I hope this helps!