Do the following ratios form a proportion?
6/10 and 2/5
no, 30 ≠ 20
100
6x = 54
x = 9
100
u = vw + z, for v
v = (u - z)/w
200
7x - 20
seven times x minus 20
200
If f=3 and g= -4, evaluate 16 - |g + 9|
What is 11?
200
3/8 = 15/x
x = 40
200
16 = 7n - 12
n = 4
200
10m - p = -n, for m
m= (-n + p)/10
300
Thirty-two divided by n is equal to sixteen.
32/n = 16
300
|4x - 1| = -6
What is Empty Set?
300
(3-y)/9 = 1/9
y = 2
300
3(2y - 7) = y - 5(y - 3)
y = 13/5 or 2.6
300
18t + 11v = -13t, for t
t = 11v/-31
400
15 = 25w^2
Fifteen is equal to twenty-five time w squared
400
|4t - 8| = 20
What is {7, -3}?
400
Find the percent increase or decrease if:
Original: 35 computers
New: 32 computers
9% decrease
400
(a + 7)/8 = 5
a = 33
400
Solve for n,
-14n + q = r - 4n
n = (r - q)/-10
500
one third minus the quotient of x and four equals x increased by nineteen
1/3 - x/4 = x + 19
500
|2y + 6| = 0
What is {-3}?
500
The cost of a new car is $15,500. This is 25% more than the cost of a used car. What is the price of a used car?
$11,625
500
Find the sum of 3 consecutive odd integers with a sum of 75.
23, 25, 27
500
Ohm's Law is E = IR, where E= the voltage measured in volts, I= the current measured in amperes, and R= the resistance measured in ohms.
Solve Ohm's Law for the resistance.