Answer:
a=-4, b=-4. (-4, -4).
Step-by-step explanation:
-3a+7b=-16
-9a+5b=16
-------------------
-3(-3a+7b)=-3(-16)
-9a+5b=16
---------------------------
9a-21b=48
-9a+5b=16
------------------
-16b=64
b=64/-16
b=-4
-3a+7(-4)=-16
-3a-28=-16
-3a=-16+28
-3a=12
a=12/-3
a=-4
Step-by-step explanation:
Two lines that are parallel have the same slope. If we make 
in to slope-intercept form it'll be like this:
Now we know 
as its slope-intercept form we can see the slope is 
.
has the same slope as so they are both parallel.
<h3>Answer:</h3>
Answer:
Step-by-step explanation:
First, we convert:
- ounces to cups
- weeks to hours
Result of conversion:
- 91 fluid ounces = 11.375 cups (1 cup = 8 ounces)
- 2.5 weeks = 420 hours (1 week = 168 hours)
To get the rate, we must divide the number of cups by number of hours
11.375 cups / 420 hours = 0.027 cups per hour = 0.03 cups per hour (approximated)
Hope that helps!
Answer:
x = 7
Step-by-step explanation:
Step 1. Combine like terms for simplification
x + 2 = 2x - 5
Step 2. Subtact 2 from both sides
x = 2x - 7
Step 3. Subtract 2x from both sides
-x = -7
Step 4. Divide it all by -1 to isolate the variable.
x = 7
