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irakobra [83]
3 years ago
10

Is the relationship between number of gallons and cost proportional? Explain

Mathematics
1 answer:
Natalka [10]3 years ago
5 0

Answer:

Step-by-step explanation:

This relationship depends on the price of a gallon of gas. ... The price per gallon stays the same, so the relationship between the gallons put in and the money paid is the same and therefore, filling each car's tank with gas is proportional because they follow the same proportionality ratio

does this help?

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The volume of a box of four earrings is 216 cm³ what is the length of one edge of the box
Iteru [2.4K]

Answer:

I’m pretty positive you divide 216 by 4, since that’s the amount of sides a box normally has. The answer would be 54 cubic centimeters. Please let me know if I’m correct, hopefully this helped.

Step-by-step explanation:

4 0
3 years ago
Hello everybody. Can somebody please help me on this math question
Nutka1998 [239]

Answers:

<em>See below.</em>

Step-by-step explanations:

(A) This equation evaluates the cost to ship 100 lbs of wheat, which equals $130:

C(100) = 1.28(100) + 2

C(100) = 128 + 2

C(100) = 130

(B) The cost to ship 250 lbs of wheat would be $322:

C(250) = 1.28(250) + 2

C(250) = 320 + 2

C(250) = 322

(C) If you had $50, you could ship 37.5 lb of wheat:

C(x) = 50

C(x) = 48 + 2

C(x) = 1.28(37.5) + 2

3 0
3 years ago
PLEASE HELP
Licemer1 [7]

Answer:

35 dimes and 60 nickels

Step-by-step explanation:

let d = # of dimes and n = # of nickels

We know that Timmy has a total of 95 coins, consisting of dimes and nickels

So d + n = 95

The total value of his bank is $6.50

A dime is worth $0.10 and a nickel is work $0.05

So 0.10d + 0.05n = $6.50

Note that we've just created a system of equations that we can solve

We have the two equations

0.10d + 0.05n = 6.50 and d + n = 95

There are many different methods we can use to solve this system but the easiest way in this situation is probably going to be the substitution method.

First we are going to want to rearrange the terms of the second equations so that one of the variables are defined.

d + n = 95

- subtract d from both sides -

n = 95 - d

We now defined "n"

Now that we have defined one of the variables we can plug in ( or substitute ) the value of it into the other equation. Once we substitute it we can solve for the other variable.

0.10d + 0.05n = 6.50

n = 95 - d

0.10d + 0.05(95 - d) = 6.50

we now solve for d

0.10d + 0.05(95 - d) = 6.50

step 1 distribute the 0.05

0.05 * 95 = 4.75 and 0.05 * -d = -0.05d

0.10d + 4.75 - 0.05d = 6.50

step 2 combine like terms 0.10d  - 0.05d = 0.05d

0.05d + 4.75 = 6.50

step 3 subtract 4.75 from both sides

0.05d = 1.75

step 4 divide both sides by 0.05

0.05d / 0.05 = d and 1.75 / 0.05 = 35

d = 35

Now that we have found the value of one variable we can plug it into one of the equations and solve for the other variable ( note that the equation that we use does not matter, we will acquire the same answer )

d + n = 95

d = 35

35 + n = 95

subtract 35 from both sides

n = 60

We can conclude that he has 35 dimes and 60 nickels

4 0
2 years ago
A customer purchased a total of 23 hamburgers and chicken sandwiches. Each hamburger costs $3.50 and each chicken sandwich costs
Oliga [24]

Answer:

25 hamburgers

88.50/3.50

Step-by-step explanation:

hope this helps

mark me brainly

thanks for the points

anddd

sparkles and love

☆*: .。. o(≧▽≦)o .。.:*☆

3 0
2 years ago
Read 2 more answers
-3c=15 c = __ help plz
LuckyWell [14K]
You would divide negative 3 (-3) from both sides to keep the c by itself. When you divide a positive by a negative it becomes negative.

Dividing 15 by -3 would equal -5, so c = -5
7 0
3 years ago
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