Answer:B?
Step-by-step explanation:
Answer:
(-3,3)
Step-by-step explanation:
Using elimination:
Multiply the first equation by 8 and the second by 5 which equals
40x+56y=48
-40-60y=-60
Now you add them together
40x+(-40x)=0 so that crosses out
56y+(-60y)= -4y
48+(-60)=-12
You now have -4y=-12
Divide by -4
y=3
Now plug in y to any of the equations
5x+7(3)=6
5x+21=6
Subtract 21 from both sides
5x=-15
Divide by 5
x=-3
Your final solution is (-3,3)
(x+1, y-1)
Because if you look at the corresponding points 1 is added to the x-value of the original point and 1 is subtracted from the y-value of the original point
Answer:
129
Step-by-step explanation:
for this one they gave us to angles and if you didnt know those angles are supplementary so they are going to add up to equal 180 so first things first is we want to find the value of x, to do that we do
180=x+19+4x+1
step 1 combine like terms
4x+x=5x
19+1=20
now we have
180=20+5x
step 2 subtract each side by 20
20-20 cancels out
180-20=160
now we have
160=5x
step 3 divide each side by 5
5/5 cancels out
160/5 = 32
x=32
now we want to plug in 32 for each expression to find which one is greater
(32)+19=51
4(32)=128
128+1=129
so the answer is 129
hope this helps :D
Answer:
4:9
Step-by-step explanation:
Find the area in inch first:
20 inch × 10 inch = 200 inch
Area in feet:
(20×15) + (10×15) = 450 inch
Area of the drawing : Area of the actual playground
200:450
Simplify it by dividing by 5
Last answer =4:9
