Answer:
128 miles
Step-by-step explanation:
Given that a car rental company charges a $25.00 base fee plus $0.10 per mile driven to rent a car.
Let us represent y as total charges and x no of miles driven
Even if x=0, y= 25 (base fee)
SO y intercept =25
Slope = charge per drive = 0.10
So equation is
y =0.1x +25
To find out how many miles did a customer drive if the customers bill was $37.80, we can use the above equation.
y = 37.80 and x =?
37.80=0.1x+25
0.1x = 12.80
x = 12.80/0.1 = 128 miles
Answer:
(x, y) = (-10, -7)
Step-by-step explanation:
#1 Multiply the first equation by 7
#2 Then multiply the second equation by 5
1. 14x - 35y = 15
2. 10x - 35y = 55 (-
---------------------------
4x = -40
x = -10
Then go back to equation one and replace "x" with -10
2(-10) - 5y = 15
-20 - 5y = 15
-5y = 15 + 20
-5y = 35
5y = -35
y = -7
The answer is
(x, y) = (-10, -7)
Hope this helps!
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Answer:
x = 7
Step-by-step explanation:
2x + 8y=30
y=2
2x + 8(2) = 30
2x + 16 = 30
2x = 30 - 16
2x = 14
x = 14/2
x = 7
Answer:
3(2g-6h)
-2(-3g+9h)
Step-by-step explanation:
We have given the expression:
6g-18h
There are two expression which are equivalent to 6g-18h
Write down the expression first:
6g-18h
Now take 3 as a common. Then we have:
3(2g-6h)
This expression is equivalent to 6g-18h
Then,
6g-18h
Take -2 as a common. Then we have:
-2(-3g+9h)
If you multiply the values inside the bracket by -2 you will get the same expression as 6g-18h....
Answer:
Scores = 8
Step-by-step explanation:
To solve variation problems, you make mild assumptions and analogies
Let's score be represented with S
Let's Absences be represented with A.
Therefore
S varies inversely as A
S ~ 1/A
S = K/A
The K represents a contant notation so that we can easily figure the variation problem.
When Absences were 2
Scores were 12
S = K/A
12 = K / 2
Cross Multiply.
K = 24.
It means that, S = 24 / A.
For a student with 3 absences, the score would be:
S = 24 / A
S = 24 / 3
S = 8
Math is fun!
