Answer:
x = -8/3
y = 4
Step-by-step explanation:
I assume you want to solve for x and y.
The best way to do this with the two formulas given is elimination. This means add the two equations together.
6x + 5y = 4
-6x + y = 20
The 6 x and -6x will cancel each other. By adding the like terms of the two together you will come out with
6y = 24
Now solve for y by dividing both sides by the 6.
y = 24/6 = 4
Now that we have y, you can plug it into one of the equations and solve for x.
Let's use -6x + y =20.
So plug in the 4 for y to get -6x + 4 = 20
Subtract the 4 from both sides then solve for y by dividing both sides by the -6.
-6x = 16
x = -16/6
You can reduce that down so that x = -8/3.
Answer:
Answers are: (x+3)(x+5) = 0
So first zero: x+3 = 0 so x = -3
Second zero: x+5 = 0 so x = -5
so zeros are: x = -5 and -3
Step-by-step explanation:
Answer:
<u>Cost = 25 + 50h</u>
cost for 8 hours of work = $425
cost for 10 hours of work = $525
Step-by-step explanation:
The question is as following:
A plumber charges $25 for a service call plus $50 per hour of service write an equation to represent the cost of hiring this plumber.
what will be the cost for 8 hours of work? 10 hours of work?
=======================================================
A plumber charges $25 for a service call plus $50 per hour
<u>Cost = 25 + 50h</u>
Where h is the number of hours of service
8 hours of work: h = 8
Substitute with h = 8 at the equation of cost
<u>Cost = 25 + 50* 8 = $425</u>
10 hours of work: h = 10
Substitute with h = 10 at the equation of cost
<u>Cost = 25 + 50 * 10 = $525</u>
Answer:
1, 3, & 5
Step-by-step explanation:
Select three options.
1. The inequality should be written as 25 s less than 300.
2. The inequality should be written as 25 s greater than 300.
3. The circle is open.
4. The circle is closed.
5. The arrow points left.
I'm guessing these are the options? If so, please mark brainliest :)
Answer:
89/13
Step-by-step explanation:
Step 1:
Multiply the denominator by the whole number
13 × 6 = 78
Step 2
Add the answer from Step 1 to the numerator
78 + 11 = 89
Step 3
Write answer from Step 2 over the denominator
89/13