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rosijanka [135]
3 years ago
11

4. A dog shelter recorded the number of dogs, d, in their care as well as the pounds of dog food, f, the dogs consumed in a day.

The table represents the relationship between the number of dogs, d, and the amount of food they ate, f. Name the independent variable and the dependent variable and explain.
Mathematics
1 answer:
dem82 [27]3 years ago
7 0
Independent variable doesn’t change, dependent variable has a value that depends on another,
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Ms. Lee wrote a test with 15 multiple choice short answer questions. The multiple choice questions x are worth 5 points and the
hram777 [196]

x + y = 15 and 5x + 10y = 100 are the system of equations that represent this situation

<em><u>Solution:</u></em>

Let "x" be the number of multiple choice questions

Let "y" be the number of short answer questions

Worth of 1 multiple choice questions = 5 points

Worth of 1 short answer question = 10 points

<em><u>Ms. Lee wrote a test with 15 multiple choice short answer questions</u></em>

Therefore,

number of multiple choice questions + number of short answer questions = 15

x + y = 15 -------- eqn 1

<em><u>The maximum number of points possible on the test is 100</u></em>

Therefore, we frame a equation as:

number of multiple choice questions x Worth of 1 multiple choice questions + number of short answer questions x Worth of 1 short answer question = 100

x \times 5 + y \times 10=100

5x + 10y = 100 ------- eqn 2

Thus eqn 1 and eqn 2 are the system of equations that represent this situation

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3 years ago
A box contains x apples.<br> 5 are green and the rest are red.<br> Write an expression for P(red).
zvonat [6]

Answer:

25

Step-by-step explanation:

a box contians× means 5×5=25

6 0
2 years ago
Please.<br>solve the system of equations
Talja [164]

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form: (3,2)

Equation form:

x = 3

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At a vehicle dealership 5 cars are sold for 2 trucks. Last year the dealership sold 128 trucks how many cars did they sell?
baherus [9]
The answer should be 64 cars sold at the dealership
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If LK is congruenat to MK, LK=7x-10, KN=x+3, MN=9x-11, and KJ=28, find LJ
Juliette [100K]

Answer:

Step-by-step explanation:

Xqual-5

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