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stepladder [879]
2 years ago
7

5b-4a+6, when a= 7 and b= 6

Mathematics
1 answer:
vichka [17]2 years ago
3 0

Answer:

Use Substitution Method -

5(6)-4(7)+6=30-28+6

=2+6

=8

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Draw a line representing the "rise" and a line representing the "run" of the line. State
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Answer:

Your slope is 1/1 or 1 in simplest form

Step-by-step explanation:

Look at attachment below to see drawn line. For further questions just comment below

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7 0
3 years ago
And one math problem is <br><br><br> y=-2x+3<br> y=-7x-2
Novosadov [1.4K]

Answer:

x=-1, y=5. (-1, 5).

Step-by-step explanation:

y=-2x+3

y=-7x-2

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-2x+3=-7x-2

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8 0
3 years ago
Read 2 more answers
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Llana [10]

Answer:

a) y=2x-4

b) independent variable: x - number of DVDs rented

dependent variable: y - the monthly cost of rent of x DVDs

c) $26

Step-by-step explanation:

<u>Question:</u>

Your DVD membership costs $16 per month for 10 DVD rentals. Each additional DVD rental is $2.

a. Write an equation in two variables that represents the monthly cost of your DVD rentals.

b. Identify the independent and dependent variables.

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<u>Solution:</u>

Let x be the number of DVDs rented, and y be the monthly cost of rent of x DVDs.

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y=16+2(x-10)\\ \\y=16+2x-20\\ \\y=2x-4

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c) If x = 15, then

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4 years ago
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