1+4=5
360/5=75
72*1=72
72*4=288
so:
72:288
Answer:
x= -10
Step-by-step explanation:
................
For this case what we should do is find the cost per ounce.
For this, we can use the following rule of three:
5 ounces ----------------------> 2.50 $
1 oz ------------------------> x
From here, we clear the value of x.
We have then:
Answer:
The unit cost per ounce is given by:
x = 0.5 $ / ounce
We know from table that x intercept (when y or t(x) is 0) is -3
next we can move over the -y from the given equation
y = 4+ 4x
solving for when y is 0
0 = 4 + 4x
-4 = 4x
x=-1
Thus the first equation has larger intercept of -1
Answer:
r = 9.50x
Step-by-step explanation:
First, we need to find how much money Derrick earns per hour. To do that, we divide how much money he earned by the three hours that he worked:
- = $9.50 earned/hour
So <em><u>every hour, Derrick makes $9.50</u></em>. Now that we know the hourly rate, we can make an equation that will always tell us how much money he makes (r), given the hours (x):
- r = 9.50x (where " <em>x</em> " is the number of hours and " <em>r</em> " is the amount of money he makes)
<u>CHECK:</u>
Let's check our answer. Since we have the equation, let's see if in 3 hours, Derrick actually earned $28.50:
- Equation: <em>r = 9.50x</em>
- x = 3 hours, r should equal $28.50
- r = 9.50(3 hours) = 28.50
- r = $28.50 ✓
The equation works! By substituting the number of hours, we got the right answer.