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mamaluj [8]
3 years ago
13

Emily has pennies and five dollar bills in her pocket. The number of pennies is eight less than three times the number of five d

ollar bills. Let f represent the number of five dollar bills. Write an expression for the number of pennies
Mathematics
2 answers:
Zina [86]3 years ago
6 0

Answer:

3f - 8 = number of pennies

Step-by-step explanation:

3f - 8 = number of pennies

zzz [600]3 years ago
6 0

Answer:

p = 3*f - 8

Step-by-step explanation:

Let f represent the number of five dollar bills and p the number of pennies.

The expression "The number of pennies is" is equivalent to "p =";

"three times the number of five dollar bills" is equivalent to "3*f"

"eight less than three times the number of five dollar bills" is equivalent to      "3*f - 8"

Then the expression is p = 3*f - 8

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4 years ago
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Given the linear equation 5x+3y-9=0. Write another linear equation in two variables such that the geometrical representation of
just olya [345]

Answer:5x+3y+1=0

Step-by-step explanation:

Given

The linear equation is 5x+3y-9=0

The other linear equation parallel to the given line can be represented by

5x+3y+c=0

Here, c can take any value . for example c=1, line becomes

\Rightarrow 5x+3y+1=0

8 0
3 years ago
What is the solution of this system of linear equations?
creativ13 [48]

Answer: D

Step-by-step explanation:

Consider the first equation. Subtract 3x from both sides.

y−3x=−2

Consider the second equation. Subtract x from both sides.

y−2−x=0

Add 2 to both sides. Anything plus zero gives itself.

y−x=2

To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the result for that variable in the other equation.

y−3x=−2,y−x=2

Choose one of the equations and solve it for y by isolating y on the left hand side of the equal sign.

y−3x=−2

Add 3x to both sides of the equation.

y=3x−2

Substitute 3x−2 for y in the other equation, y−x=2.

3x−2−x=2

Add 3x to −x.

2x−2=2

Add 2 to both sides of the equation.

2x=4

Divide both sides by 2.

x=2

Substitute 2 for x in y=3x−2. Because the resulting equation contains only one variable, you can solve for y directly.

y=3×2−2

Multiply 3 times 2.

y=6−2

Add −2 to 6.

y=4

The system is now solved.

y=4,x=2

6 0
3 years ago
Read 2 more answers
Did i do this right?
Sveta_85 [38]

Answer:

a) FALSE

Step-by-step explanation:

a) FALSE (it was translated from quadrant III to quadrant I)

b) TRUE

c) TRUE

d) TRUE

e) FALSE

8 0
3 years ago
Pls help! evaluate the function for x=3a.
Musya8 [376]
The answer is choice C .
5 0
3 years ago
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