First car is x
second car is y
25x+30y=1550
x+y=55
Multiply the second equation by -25 for elimination method to cancel out x
-25x-25y=-1375
Add the two equations
5y=175
y=35
Plug this value into the second equation
x+35=55
x=20
Final answers:
First car=20 gallons
Second car=35 gallons
Answer:
5
Step-by-step explanation:
Think of 5 positive things and 9 negative things.
O O O O O
P P P P P P P P P
5 of the positive things will cancel out 5 of the negative things, leaving behind 4 negative things.
#teamtrees #WAP (Water And Plant)
Answer:
The population in 2003 was 234 million
Step-by-step explanation:
In order to calculate the population in 2003 we would have to use the The exponential growth formula as follows:
p(y)=ir^t
According to the given data:
p(y)=233 million
i=231 million
t
=1999-1991
Therefore, 233 million=231 million r^(1999-1991)
(233 million/231 million)^(1/8)=r
p(y)=231 million(233 million/231 million)^((y-1991)/8)
Therefore, in 2003
p(2003)=231 million(233 million/231 million)^((2003-1991)/8)
p(2003)=231 million(233 million/231 million)^(1.5)
p(2003)=234 million
The population in 2003 was 234 million
Answer:
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Step-by-step explanation:
<h3>

</h3>
<u>Add 5 to both sides of the equation</u>
That's
<h3>

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<u>Divide both sides by 4</u>
<h3>

</h3>
We have the final answer as
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Hope this helps you
7*6= 42, 42-1= 41, and that would the anwser