Ms Juan 7th Period Team 5

Linear equations

100

which ordered pair is a solution of the equation?

                    5x-2y=18

only (4,1)

200

solve for y

16/y=4

4=y

300

y=-3x+12

-3

400

3x+6y=5 -3

y=.83+-.5x

500

solve for x 

5x-6=3x-8

x-1

quadratic equations

100

maria's parents invested $14,000 at 6% per year compounded monthly. how much money will there be in the account after 10 years

there will be about $25,471.55 in 10 years

200

how much will the gift card be worth if no one wins after 10 days

in 10 days, the gift will be worth $128.01

300

estimate the amount of air in the rart after 7 days 

the amount of air in the raft 7 days will be about 2,790 cubic inches

400

A fully inflated child's raft for a pool is losing 6.6% of its air every day , the raft originally contained 4,500 cubic inches of air

y=4500(0.934) 

500

how much soda was consumed in 2005?

206.5 billion liters.

Inequalities

100

Solve for x 

x+2>12

x>10

200

12<x+5

7<x

300

Solve for x x+3<7

x<4

400

x-12>8

x>20

500

solve for m

m+19>56

m>37

exponential functions

100

2^x=32,

what is x?

x=5

200

5^x=1/125,

what is x?

x=-3

300

(1/3)^2x=243,

what is x?

x=-5/2

400

500=1000e^-.75x

what is x?

x=0.9242

500

56=14(1+e^.195x),

what is x?

x=5.6339