Mean, or average.
The mean is 5.625
Answer:
41 and 77
Step-by-step explanation:
x: his age the first time he went to space
y: his age the second time he went to space
the second time he went to space he was 5 years younger than twice the age when he went his first time, then:
y = 2x - 5
the sum of both ages is 118, then:
x + y = 118
If you replace y = 2x - 5 in x + y =118:
x + 2x - 5 = 118
3x = 123
x = 41
replacing x:
41 + y = 118
y = 118 - 41
y = 77
so when he was 77, he was 5 years younger than twice 41 ( 41*2 = 82 => 82 - 5 =77)
In this equation, we're trying to find if she has enough money to buy a $12 movie ticket.
We know that she buys a bag for $45.50, with a 5% tax rate. Let's calculate the total cost of the bag after tax.
45.50 · 1.05 = 47.775
Round to the nearest hundredths place
$47.78
She spent $47.78 on the bag.
She has $60, so calculate how much money she has left.
60 - 47.78 = 12.22
She has $12.22 left to spend.
This means that she has enough money to buy the movie ticket.
She would also have 22 cents left to spare.
Answer:
Yes, she has enough money to buy the movie ticket
Answer:
Mike's sisters age is 5 years old
Step-by-step explanation:
Since Mike is 17 years old, he is six years older than 2 times her age, so we subtract 6 from his age; we get 11 since he is 2 times her age divide 11 by 2 = 5.5. That means that his sister is 5 years old
