Answer:
percentage change=25% .
Step-by-step explanation:
Given : $15.60 to $11.70 .
To find: What is the percent change .
Solution: We have given that $15.60 to $11.70 .
Change = final value - initial value .
Change = $15.60 - $11.70
=$3.9
percentage change = 
= 
= 
.
On dividing both number by 3
percentage change=
.
percentage change=
.
percentage change=25% .
Therefore, percentage change=25% .
2 ways
zero product property
easy way
zero product
factor perfect square
m^2-3^2=0
(m-3)(m+3)=0
set each to zero
m-3=0
x=3
m+3=0
m=-3
m=-3 or 3
easy way
add 9 to both sides
m^2=9
sqrt both sides remember to take postive and negative roots
m=+/-3
m=-3 or 3
B is answer
Since they are multiples if 12
The possibilities are
12, 12, 156
12,24,144
12,36,132
12,48,120
12,60,108
12,72,96
12,84,84
24,24,132
24,36,120
24,48,108
24,60,96
24,72,84
36,36,108
36,48,96
36,60,84
36,72,72
48,48,84
48,60,72
60,60,60
Hence the probability is 1/19 or 0.0526
Answer:
3 games
Step-by-step explanation:
23 - 3.50 = 6.5g
6.5g = 23 - 3.5
6.5g = 19.50
g = 19.50 : 6.5
g = 3
She can only plays 3 games
Answer:
he will dig for 15 hours
Step-by-step explanation:
if a miner digs —90 feets in 6 hours
then he will dig –225 feet in x hours
—225 feet x 6 hours /—90 feet = 15 hours
