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mafiozo [28]
3 years ago
8

Please help me...I gotta get this right for my test. (15 points)

Mathematics
2 answers:
ss7ja [257]3 years ago
8 0

Answer:

negative slope

Step-by-step explanation:

you have to subtract

Nutka1998 [239]3 years ago
5 0

Answer:

y = 0x + (-1)

or

y = 0x - 1

0r

y = -1

Step-by-step explanation:

The formula for finding the slope is y=mx+b.

b is the y-intercept which is -1 in this case.

mx is the rise over run from the y-intercept. m is 1 and x is -1. So mx is 0.

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Solve for x. 3x/2 = 15 x = 22 1/2 x = 10 1/2 x = 10 x = 1/10
Leokris [45]

Answer:

x = 10

Step-by-step explanation:

(3x)/2 = 15 is your question.

Isolate the variable (x). Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS (Parenthesis, Exponent (& roots), Multiplication, Division, Addition, Subtraction).

First, multiply 2 to both sides

((3x)/2) = (15)(2)

3x = (15)(2)

3x = 30

Next, to isolate the variable (x), divide 3 from both sides

(3x)/3 = (30)/3

x = 30/3

x = 10

x = 10 is your answer

~

8 0
3 years ago
Read 2 more answers
Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $13 monthly fee
Tpy6a [65]

Answer:

With 250 minutes of calls the cost of the two plans is the same

Step-by-step explanation:

We must write an equation to represent the cost of each call plan.

<u>For the first plan</u>

Monthly fee

 $ 13

Cost per minute

 $ 0.17

If we call x the number of call minutes then the equation representing the cost c for this plan is:

c = 13 + 0.17x

<u>For the second plan</u>

monthly fee

$ 23

Cost per minute

$ 0.13

If we call x the number of call minutes then the equation representing the cost c for this plan is:

c = 23 + 0.13x

To know when the cost of both plans are equal, we equate the two equations and solve for x.

13 + 0.17x = 23 + 0.13x\\\\0.17x -0.13x = 23-13\\\\0.04x = 10

x = \frac{10}{0.04}

x = 250\ minutes

With 250 minutes of calls the cost of the two plans is the same: $55.5

3 0
3 years ago
Solve the following:<br><br> A) a/5+3=8<br> B) 3b/7-1=5
alexandr402 [8]

Answer:

A)25

B) 14

Step-by-step explanation:

A) a/5 + 3 = 8

    a/5 = 8 - 3

    a = 5 x 5

    a = 25

B)  3b/7 -1 =5

     3b/7 = 5+1

     3b = 6 x 7

      b = 42/3

      b = 14

7 0
3 years ago
Which is a correct way of graphing the line y = –x – 2?
katen-ka-za [31]
Y = -x - 2.....in y = mx + b form, the m represents the slope and the b represents the y int. (and if u didnt already know, -x is the same as -1x)

so in ur equation, the slope is -1 and the y intercept is -2....or (0,-2)

so u would plot (0,-2) and use the slope of -1 to plot another point. Draw a line through the points.
4 0
3 years ago
What two equations is y=-5/9x+2/3 equivalent to?
alexira [117]
Your answer is C :) All they did was add 5/9x to both sides 
6 0
3 years ago
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