Sally had 8 dollars right before she was paid for working 4 hours. Sally has at least 32 dollars now.
how much was she paid per hour?
Sally was paid at least 6 dollars /hour.
1) A. Biased because the population could be uneven. Too many of one ethnicity, too many of one gender, etc.
2) I believe this one is C. because there are not enough people. You need to survey the majority of parents instead of a selected few.
3) There are 80 green marbles per 500, therefore calculate the percentage.
or
percent. Multiply
percent or
times 25. It gives you
.
4) This one is a probability thing too. For every 500 batteries, there are 3 that are defective, therefore,
.
5) Yet another one. Add up all the nuts and you get
. The chance of getting a cashew from these
is:
.
Therefore:
Answer:
3 unit
Step-by-step explanation:
3/4 x 4 = 12/4 = 3
Answer:
f(x) = 300,000(1.05)^x
Step-by-step explanation:
Use the exponential growth equation:
f(x) = a(1 + r)^x
Plug in 300,000 as a, since it is the original population:
f(x) = 300,000(1 + r)^x
The city's population is growing at 5% each year, so plug in 0.05 as r:
f(x) = 300,000(1 + 0.05)^x
f(x) = 300,000(1.05)^x
So, the function for the population growth is f(x) = 300,000(1.05)^x
Answer:
87.92
Step-by-step explanation:
3.14(a² + ab) where a = 4 and b = 3
Plug the given numbers into the appropriate values. Remember to follow PEMDAS.
3.14((4)² + (4)(3))
3.14(16 + 12)
3.14(28)
87.92
