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worty [1.4K]
3 years ago
9

Here is a system of linear equations:

Mathematics
1 answer:
marysya [2.9K]3 years ago
3 0
5x+4y=16 y=3/5x-3

y=mx+b <------ slope-intercept form

5x+4y=16
-5x       -5x
============
4y=-5x+16
--------------
4
============
y= -5/4+4

Slope is -5/4
y-intercept is 4

y=3/5x-3

slope is 3/5
y intercept is -3

I can't do the graph but I'm sure you can figure it out!
Hope I helped.
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Give the name (monomial,<br> binomial, trinomial etc.) and<br> degree of the polynomial.<br> 15x2
kati45 [8]

ANSWER

Step-by-step explanation:

<h3>EXAMPLES</h3><h3>monomial:-20y</h3><h3>binomial:-25x+70y</h3><h3>trinomial:-13x+17y+√16</h3><h3>Degree of polynomial of 15x^2 is </h3>

DEGREE =2

6 0
3 years ago
Isaac has a piece of rope that 5 yards long. Into how many 1/2 - yard pieces of rope isaac can cut?
Trava [24]

Answer:

10

Step-by-step explanation:

So there are 5 pieces of rope, if you cut them all in half then that would double the number.

7 0
3 years ago
Read 2 more answers
Please help.. thanks if you do :)
AlladinOne [14]

Answer:

it  X+3

it 3 hope this help yuuu

Step-by-step explanation: 6(x+2)=30

6x+6.2=5

6(x+2)=30

6x + 12 = 30

     -12    -12

6x = 18

x = 3

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6 0
3 years ago
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Five students wrote a mathematics test. The average mark was 68. If the marks for four of the students were 75, 62, 84 and 53, t
konstantin123 [22]

Answer:

66

Step-by-step explanation:

Use the formula for the mean of a set of numbers:

                  sum of the numbers

average = --------------------------------

                     count of numbers

Here we know that the average mark was 68, so we can write:

               

                           75 + 62 + 84 + 53 + x

average = 68 = ----------------------------------

                                           5

or                            274 + x

                  68 = -------------------

                                    5

Solving for x, we multiply both sides by 5:     340 = 274 + x.

Subtracting 274 from both sides effectively isolates x:

 340 = 274 + x

- 274    -274

------------------------

  66      =    x

The fifth student's mark was 66.

4 0
3 years ago
Cleo added 3a+4b and got 7ab. Three of these statements explain why her answer is wrong. Which one does not
Triss [41]

Answer:

3 and 4 are factors of 12 so they should be multiplied to get a product of 12 ab. (Answer D)

Step-by-step explanation:

You do not multiply in addition unless an exponent is present. You should not multiply or add considering these are not like terms. Therefore, D is wrong.

5 0
3 years ago
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