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steposvetlana [31]
2 years ago
12

Max car holds 18 gallons of gasoline driving on the highway the car uses approximately 2 gallons per hour. let H represent the n

umber of hours max has been riding on the highway. write an expression that shows how many gallons of gasoline Max has left after driving H hours. then find the number after max drives 3.5 hours on the highway.
Mathematics
1 answer:
RSB [31]2 years ago
3 0
Y= 18 gallons-2(h)
y is what you're trying to find out and since there are 18 gallons in the tank after every hour you would have 2 less gallons. So, you can multiply how many hours he's been driving by the 2 gallons and subtract it from 18
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Jacob purchased a bag of 60 marbles of various colors. The bag contained 20 red, 15 green and 25 blue marbles. What percent of t
zalisa [80]
<h3>Answer:  25%</h3>

Work Shown:

15 green out of 60 total

15/60 = 1/4 = 0.25 = 25%

5 0
2 years ago
Question 3
IceJOKER [234]

Answer:

I would say d.im pretty sure tho

6 0
3 years ago
Substitute 2m + n =0 and m + 2n =3
melamori03 [73]

There are several ways you can solve this problem if you're trying to solve for m and n. You can substitute, or systems of equations. However, I'm going to use substitution:

2m + n = 0 => n = -2m

We can input that in for the other equation:

m + 2n = 3 now becomes: m + 2(-2m) = 3

Now we can solve:

m + 2(−2m) = 3

m + −4m = 3

(m + −4m) = 3 (Combine Like Terms)

−3m=3

m = -1

Now we can input that value in to solve for n:

We said that n = -2m, and m = -1, so n = -2(-1):Answer:

n = 2

Your final answer is m = -1, and n = 2, which can also be written as (m,n) = (-1,2)

----------------------

However, if you were solving for m+n:

You would add the two equations!:

2m + n = 0

m + 2n = 3

----------

3m + 3n = 3

Now, you can take 3 common:

3(m+n) = 3

m + n = 1

Your final answer for what m + n equals 1!

3 0
3 years ago
Help me with my math!!!!!!!!!!
shusha [124]

Answer:

I got u

Step-by-step explanation:

6 0
2 years ago
PLEASE HELP ME!
marshall27 [118]

---------------------

given:

 = cost of Brazilian coffee in mixture

 = cost of Venezuelan coffee in mixture

 = cost of mixture

---------------------

Now I can rite these equations:

(1) 

(2) 

Multiply both sides of (2) by  and

subtract from (1)

(1) 

(2) 

and, since

288 kg of Brazilian coffee and 96 kg of Venezuelan coffee are needed

4 0
2 years ago
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