Equations
6=x+2
4
What percent of 75 is 15?
20%
Solve the equation for x.
mx + nx = p
x=p/m+n
Convert the given amount to the given unit.
1minute=60 seconds
4 minutes; seconds
240seconds
Solve the proportion
x/8=4/5
x=6.4
3n-4=11
5
What is 25% of 144?
36
Solve for x.
s = c + xc
x = s-c/c
Convert the given unit to the given unit.
1 dollar=100cents
79 dollars; cents
7,900 cents
x/120=1/24
x=5
64=8(r+2)
6
A beauty salon buys bottles of styling gel for $4.50 per bottle and marks up the price by 40%. For what price does the salon sell each bottle?
$52.00
Solve each equation for y. Then find the value of y for each value of x.
3x-5y=9; x=1
y=-6/5 when x = 1
Copy and complete each statement
1hour=60 minutes
2.5h=_minutes
150 minutes
c+1/c-2=4/7
c=-5
3(q-5)=2(q+5)
q=25
Find the percent change.
Original amount: 2008
New amount: 1975
2%
Solve each equation for y. Then find the value of y for each value of x.
x-4y=-4; x=6
y=5/2 when x=6
Mr. Swanson bought a package of 10 disposable razors for $6.30. He found that each razor lasted for 1 week. What was the cost per day?
9cents a day
If 5lbs of pasta salad serves 14 people, how much pasta salad should you bring to a picnic with 49 people?
17.5lbs
A family buys airline tickets online. Each ticket costs $167.00. The family buys travel insurance with each ticket which costs $19.00 per ticket. The Web site charges a fee of $16.00 for the entire purchase. The family is charged a total of $1,132.00. How many tickets did the family buy?
167t+19t+16=1132
6 tickets
In 1970, the U.S. population was about 205 million people. In 2007, it was about 301 million. What was the percent increase?
about 47%
Solve for x
x+2/y-1=2
x=2y-4
Copy and complete each statement.
1ft=12inches
7ft 3in =__inch
87 inches
The scale of a map is 1cm:15km. Find the actual distance corresponding to the map distance.
15cm
225km