Answer:
y = x + 3 is red line.
y = -3x-2 is green line.
y = -x-7 is black line.
y = 2x + 1 is blue line.
Step-by-step explanation:
first we look at up on both and y intercepts
then find a line.
y = x + 3
x intercept is : x + 3 = 0 so x = -3
y intercept is : 0 + 3 = 0 so y = 3
y = -3x-2
x intercept is : -3x-2 = 0 so x = -2/3
y intercept is : -3*0 -2 = 0 so y = -2
y = -x-7
x intercept is : -x -7 = 0 so x = -7
y intercept is : 0 -7 = 0 so y = -7
y = 2x+ 1
x intercept is : 2x+1 = 0 so x = -1/2
y intercept is : 0*2 + 1 = 0 so y = 1
therefor :
Answer:
y = x + 3 is red line.
y = -3x-2 is green line.
y = -x-7 is black line.
y = 2x + 1 is blue line.
The cost of each order of fried crab claw is $4.5 and cost of each cup of gumbo is $3.5
Step-by-step explanation:
Let,
Cost of each fried crab claw = x
Cost of each gumbo = y
According to given statement;
4x+4y=32 Eqn 1
2x+y = 12.5 Eqn 2
Multiplying Eqn 2 by 2
![2(2x+y = 12.5)\\4x+2y=25\ \ \ Eqn\ 3](https://tex.z-dn.net/?f=2%282x%2By%20%3D%2012.5%29%5C%5C4x%2B2y%3D25%5C%20%5C%20%5C%20Eqn%5C%203)
Subtracting Eqn 3 from Eqn 1
![(4x+4y)-(4x+2y)=32-25\\4x+4y-4x-2y=7\\2y=7](https://tex.z-dn.net/?f=%284x%2B4y%29-%284x%2B2y%29%3D32-25%5C%5C4x%2B4y-4x-2y%3D7%5C%5C2y%3D7)
Dividing both sides by 2
![\frac{2y}{2}=\frac{7}{2}\\y=3.5](https://tex.z-dn.net/?f=%5Cfrac%7B2y%7D%7B2%7D%3D%5Cfrac%7B7%7D%7B2%7D%5C%5Cy%3D3.5)
Putting y=3.5 in Eqn 2
![2x+3.5=12.5\\2x=12.5-3.5\\2x=9](https://tex.z-dn.net/?f=2x%2B3.5%3D12.5%5C%5C2x%3D12.5-3.5%5C%5C2x%3D9)
Dividing both sides by 2
![\frac{2x}{2}=\frac{9}{2}\\ x=4.5](https://tex.z-dn.net/?f=%5Cfrac%7B2x%7D%7B2%7D%3D%5Cfrac%7B9%7D%7B2%7D%5C%5C%20x%3D4.5)
The cost of each order of fried crab claw is $4.5 and cost of each cup of gumbo is $3.5
Keywords: linear equation, subtraction
Learn more about subtraction at:
#LearnwithBrainly
Answer:
134
Step-by-step explanation:
The ratio of Type O donors to total donors was ...
... 37 : (37+43) = 37 : 80
So, 37/80 is the fraction of total donors that were Type O.
Then the number of Type O donors expected in a group of 290 is ...
... (37/80) · 290 = 134.125 ≈ 134
The height<span> of a cone or </span>pyramid<span> is the perpendicular measurement from the base to the top of the </span>pyramid<span>. That means straight up. </span>Slant height<span> is the </span>height<span> along one face of the cone or </span>pyramid<span> from the base to the top.</span>