Inupt values for y and evaluate to get y values
(x,y)
if x=0
y=3(0)-1
y=0-1
y=-1
(0,-1)
if x=1
y=3(1)-1
y=3-1
y=2
(1,2)
if x=2
y=3(2)-1
y=6-1
y=5
(2,5)
if x=3
y=3(3)-1
y=9-1
y=8
(3,8)
look for the points
(0,-1) (1,2) (2,5) (3,8)
B
Let x = the number.
"increased by" tells you we are adding.
"twice a number" tells you 2 times a number.
16 + 2x = - 24
Subtract 16 from both sides so that we have the variable on one sides and the constants on the other.
2x = - 24 - 16
2x = - 40
Divide by 2 to isolate the variable.
x = - 40/2 = - 20
Your solution is - 20.
To check your answer, plug in.
16 + 2(-20) = - 24
16 - 40 = - 24
- 24 = - 24
Answer:
adult = 52
student = 37
Step-by-step explanation:
make adult as x and student as y.
it will then be x + y = 89
5x + 3y = 371
solve it and the answer comes out
A=s^2
da/dt=2sds/dt
we know each side increases at 5cm/s
da/dt=2s(5cm/s)
note, when a=25cm2, s=5cm
so da/dt=2(5cm)(5cm/s)=[50cm2/s]
Answer:
3
Step-by-step explanation:
