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Elis [28]
3 years ago
7

Gavin went on 24 runs last month that totaled 100 miles. Each run was a distance of either 3 miles or 5 miles. Which system of e

quations can be used to determine the number of 3-mile runs, x, and the number of 5-mile runs, y, that Gavin went on last month?
A.
x + y = 100
3x + 5y = 24

B.
x + y = 100
5x + 3y = 24

C.
x + y = 24
3x + 5y = 100

D.
x + y = 24
5x + 3y = 100
Mathematics
1 answer:
snow_lady [41]3 years ago
7 0

Answer:

d

Step-by-step explanation:

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Solve for c in a+b+c=180
AleksAgata [21]

Answer:

c = -a - b + 180

Step-by-step explanation:

Isolate the c. Note the equal sign, what you do to one side, you do to the  other. Subtract a and b from both sides

a (-a) + b (-b) + c = 180 (-a) (-b)

c = 180 - a - b

c = -a - b + 180 is your answer

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4 0
3 years ago
Laura collects nickels and dimes she has a total of 47 nickels and dimes she calculated the value of the coins and found out she
Gre4nikov [31]

Answer:

Number of dimes = 34

Number of nickels = 13

Step-by-step explanation:

Total number of coins = 47

Coins are in the form of nickels and dimes.

Value of a nickel = 5 cents

Value of a dime = 10 cents

Total value of coins = $4.05 or 405 cents

To find:

Number of nickels and dimes?

Solution:

Let number of nickels = x

Money value of nickels = 5x

Let number of dimes = y

Money value of dimes = 10y

Total value of coins = 5x+10y

This value is given as equal as 405.

As per question statement, the equations can be written as:

5x+10y = 405 ..... (1)\\x+ y = 47 ...... (2)

Multiplying equation (2) with 5 and subtracting from equation (1):

10y - 5y = 405 - 235  \\\Rightarrow 5y = 170\\\Rightarrow y = 34

Number of dimes = 34

Number of nickels  = 47 - 34 = 13

6 0
2 years ago
Draw the graph of the equation: 1.6x=4.8
kiruha [24]

Answer:

Here...

Step-by-step explanation:

<u>x  |  y</u>

3  | 0

3  | 1

<u><em>The picture is the graph ( I'm not sure why I wrote that you probably already knew... but, I'm not sure if this helps but here.. :D )</em></u>

6 0
2 years ago
50 POINTS 6(2+t) - 2(t+1) simplify please this ends at 12:00 HELP ME
daser333 [38]

6(2 + t) - 2(t + 1)

...multiply 6

12 + 6t - 2(t + 1)

...multiply 2

12 + 6t - 2t - 2

...simplify

10 + 4t

4 0
3 years ago
Solve for substitution. Show your work.<br> x=2y-3<br> 2y-x=-3
Elanso [62]
X=2y-3                Problem:      2y-x=-3 
                                             
2y-2y-3=-3 
combine your variables 
then you'll get something like this 
-3=-3 
So then it's an infinite answer







5 0
3 years ago
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