Answer: 27.509, 27.56, 27.599, 27.5998
Step-by-step explanation:
Answer:
A C
Step-by-step explanation:
Answer:
Step-by-step explanation:
Leah wants to earn at least 120 dollars a month and she has two job options. This is written as
5x + 8y > 120
She also can't work more than 20 hours, leading us to the second equation
x + y = 20
First we solve for one variable
y = 20 - x
then substitute it into the first equation
5x + 8(20 - x) = 120
Solve for x
5x + 160 - 8x = 120
3x = 40
x = 40/3
Then we solve for y
y = 20 - x
y = 20/3
x < 40/3
y > 20/3
B and D will not work because their x+y is greater than 20.
E will also not work because the value is less than 120
Answer:
$1200
Step-by-step explanation:
First, round the amount paid per month to the nearest hundred.
When rounding, follow this rule: If 5 or more, round up. If 4 or less, round down.
Round 80 to the nearest hundred. Round up because 8 is 5 or more
$80 ⇒ $100
Now calculate amount Joey pays each year.
Since there are 12 months in a year, multiply the rounded payment ($100) per month by 12.
$100 X 12 months = $1200 per year
Therefore, an estimate of how much Joey pays each year for a math tutor is $1200.
Answer:
r = 0
Step-by-step explanation:
To solve this for r, add 20 to both sides. The result will be -10r = 0, and so
the solution is r = 0.
