Simple Equations
3/5x=12
x=20
3/5n - 4=56
n=100
Classify the following number as natural, whole, integer, rational, irrational, or real.
2π
irrational, real
g(e) = 2/e - 6
Find g(8)
g(8)= -5.75
When Ms.Jone's students asked her age, she gave them the following problem to solve: " I spent 1/8 of my life before entering school, 3/10 of my life in elementary and secondary schools, and 1/5 of my life in college and grad schools. Since completing my degrees I have been teaching 15 years." How old is Ms. Jones?
40
1/4x=32
x=128
m/3 + m/7 = 1
m = 21/10
Classify the following number as natural, whole, integer, rational, irrational, or real.
-2
rational, integer, real
g(e) = 2/e - 6
If g(e)= -4 find e
e = 1
A farmer grows three crops: wheat, corn, and alfalfa. He farms all the land he owns. On his farm, 1/3 of the land is planted with wheat, 2/5 is planted with corn, and 60 acres are planted with alfalfa. How many acres of crops are on this farm?
225 acres
24=1.2y
y=20
1/6x + 2/3x = 30
x=36
Classify the following number as natural, whole, integer, rational, irrational, or real.
-11/3
rational, real
If f(q)= 8q - (3 + 4q)
For what value of q is f(q) = 17
q = 5
Mary spent 1/2 of her money on clothes, 1/5 of it on groceries, and had $90 left. How much did she originally have?
$300
F/6=6
F=36
0.07x + 0.05(100,000 - x) = 6500
x=75,000
Classify the following number as natural, whole, integer, rational, irrational, or real.
3
natural, whole, integer, rational, real
If f(n) = 1/(n + 2)
What is f(18)?
1/20
6/F=0.2
F=30
3/4 = 2/3(z - 15)
Classify the following number as natural, whole, integer, rational, irrational, or real.
1.25
rational, real
If f(n) = 1/(n + 2)
If f(n)=1/99, find n.
n = 97