Answer: -2.85
Step-by-step explanation:
To convert 22/20 into a decimal, we must multiply it by 5 to get a denominator of 100.
5(22/20)= 110/100= 1.10
So now lets solve the equation.
-1.75-1.10 = -2.85
Answer:
the school would be too packed?
Answer:23.1 ft
Step-by-step explanation:
Given
Point is 15 ft away from the base of the flagpole
The angle of elevation is ![57^{\circ}](https://tex.z-dn.net/?f=57%5E%7B%5Ccirc%7D)
from the figure, we can write
![\Rightarrow \tan 57^{\circ}=\frac{Y}{15}\\\\\Rightarrow Y=15\times \tan 57^{\circ}=23.09\approx 23.1\ ft](https://tex.z-dn.net/?f=%5CRightarrow%20%5Ctan%2057%5E%7B%5Ccirc%7D%3D%5Cfrac%7BY%7D%7B15%7D%5C%5C%5C%5C%5CRightarrow%20Y%3D15%5Ctimes%20%5Ctan%2057%5E%7B%5Ccirc%7D%3D23.09%5Capprox%2023.1%5C%20ft)
The length of the flagpole is 23.1 ft
Divide 225 in to 5 the answer is 45 yards
Answer:
x is equal to -2, and y is equal to 2.
Step-by-step explanation:
You can solve this type of question by solving one of the equations for a given variable, and substituting it into another.
Because both of these are definitions of y, we could simply say, y = y, and thus:
x + 4 = -2x - 2
3x = -6
x = -2
This tells us also that y, being equal to x + 4, must equal 2
We can find the same solution by solving one of them for x, then substituting that into the other. We know:
y = x + 4
so we can also say:
x = y - 4
If we substitute that into the other:
y = -2x - 2
y = -2(y - 4) - 2
y = -2y + 8 -2
3y = 6
y = 2
which we can then plug into either of the original equations to solve for x:
y = x + 4
2 = x + 4
x = -2