Logic B Week 8

Equations

100

4x+3=15

What is

x=3?

200

-11k-5=17

What is

k=-2?

300

-7k-4=-32

What is

k=4?

400

2/5x-3/10=1/2

What is

x=2?

500

0.07x-0.4=0.16

What is

x=8?

Equations 2

100

-5m+6=8

What is

m=-2/5?

200

1/5b-1/2=3/4

What is

b=25/4?

300

0.4x-0.2=-0.16

What is

k=1/10?

400

2 1/2m+3/7=5/14

What is

m=11/35?

500

1.2=-1.4+20b

What is

b=13/100?

Harder Equations (x2)

100

3m-7m=8m-6

What is

m=1/2?

200

3p+7-(-3)=p+(-2)

What is

p=-6?

300

2x+3x+4x-5=2+3+4x

What is

x=2?

400

5-6p=9p-7+8p-3+2p

What is

p=3/5

500

2m-5-7m+2=5+3m+10-5m

What is

m=-3?

Expand

100

(xy-x)2xy

What is

2x^2y^2-2x^2y?

200

xy^2(y^2p-p)

What is

xy^4p-xy^2p?

300

3xp^3(p^5-x^2p^8)

What is

3xp^8-3x^3p^11?

400

2x^2m^2(m^2-4m)

What is

2x^2m^4-8x^2m^3?

500

8m^2x(5m^3x-3x^5+2x)

What is

40m^5x^2-24m^2x^6+16m^2x^2?

Fractions/Functions

100

This fraction of 60 is 48

What is

4/5?

200

4/3

of this number is 64

What is 48?

300

3 1/5

of this number is 48

What is 15?

400

If f(x) = x(x² - 3), then f(2)

What is 2?

500

4 1/2

of 220 is this number

What is 990?