If we know that 30% of the time is used after 9 minutes we can write this mathematically as:

By solving for x we can determine the total time allowed to play games and so:

The total time allowed to play games is 30 minutes. Since 9 minutes have lapsed 30-9=21 minutes left to play.
Answer:
option f
option a
option d
option c
option e
option b
Step-by-step explanation:
we have x^2 - 6x + 7 = 0
f) x^2 - 6x = -7
a) x^2 - 6x + 9 = -7+9
d) (x-3)^2=2
c)
e) x-3=+-
b) x=3+-
The answer for the question is x= 12.44, x = 0.56
Answer: C) $480
Step-by-step explanation:
Given: Jose invested $5000 into a fund with an interest rate of 4.8%.
Therefore, Principal amount (P)$5000
Rate of interest = 4.8%
In decimal rate of interest(r)=0.048
Time (t)= 2 years
We know that the simple interest is given by

Hence, the interest after 2 years = $480
Answer:
You need to divide the total teaspoons she has by the amount she needs for each cake to find out how many cakes she can bake. 9/12 / 1/12 =9 She can bake 9 cakes.
Step-by-step explanation: