7000,000+40,000+5,000+300+0+5
Answer:
I DON'T know why?
Step-by-step explanation:
2.74 - (-19.4) = 22.14, so the freezer is 22.14°c colder. I hope that helps!
Answer:
x=2 and y= -3
Step-by-step explanation:
This is a simultaneous equation. To solve this type of equation, there are three methods; substitution, Elimination and Graphical.
But here, we would be using the substitution method.
3x-y=9 Equation 1
2x-y=7. Equation 2
Getting y from equation 2, we have
-y= 7-2x
Multiply both sides by -
y= 2x-7 Equation 3
Substituting y for 2x-7 in equation 1, we have
3x- (2x-7)=9
3x-2x+7=9
x+7=9
x=9-7
x=2
Substituting x as 2 in equation 3
y=2x-7
y= 2(2)-7
y= 4-7
y= -3
The equation for a trapezoid is a+b/2*h. In this case, we have 3.2+8/2.
So 5.6=22.4/h. The height is 4 feet.
