Answer:
x=
1/2
and y=3
Step-by-step explanation:
Let's solve your system by substitution.
y=10x−2;2x+y=4
Step: Solvey=10x−2for y:
y=10x−2
Step: Substitute10x−2foryin2x+y=4:
2x+y=4
2x+10x−2=4
12x−2=4(Simplify both sides of the equation)
12x−2+2=4+2(Add 2 to both sides)
12x=6
12x
12
=
6
12
(Divide both sides by 12)
x=
1
2
Step: Substitute
1
2
forxiny=10x−2:
y=10x−2
y=10(
1
2
)−2
y=3(Simplify both sides of the equation)
Answer:
x=
1
/2
and y
Answer:
After 30 years there will be 4480 foxes.
Step-by-step explanation:
first period: (4) x (70) = 280
second period: (4) x (280) = 1120
third period: (4) x (1120) = 4480
I think this question is impossible because they all do not equal 9
Answer:
667.59 ft²
Step-by-step explanation:
30 x 30=900
900 x π=2,827.4
85/360 x 2,827.4=667.59 ft² watered by the sprinkler