3 years ago

Thirty four and nine ten thousandths

Mathematics

1 answer:

dybincka [34]3 years ago

7 0

34.100 efefref evf dewdcec

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The two lines y= 6x+15 and y= mx+4 intersect at x= -2. What is the y-coordinate of their intersection point

taurus [48]

Answer:

The y-coordinate of their intersection point is 3

That is y=3

Step-by-step explanation:

Given two lines are y=6x+15 and y=mx+4

Given that the two lines intersect at x=-2

To find the y coordinate of their intersection point :

Equating the two lines

6x+15=mx+4

6x+15-mx-4=0

6x-mx+11=0

(6-m)x+11=0

At x=-2 (6-m)x+11=0

(6-m)(-2)+11=0

(6-m)(-2)=-11

$6-m=\frac{11}{2}$

$-m=\frac{11}{2}-6$

$-m=\frac{11-12}{2}$

$-m=\frac{-1}{2}$

$m=\frac{1}{2}$

Substitute the value $m=\frac{1}{2}$ in y=mx+4 we get

$y=\frac{1}{2}x+4$

At x=-2 $y=\frac{1}{2}(-2)+4$

$=-1+4$

$=3$

Therefore y=3

Therefore the y-coordinate of their intersection point is 3

7 0

3 years ago

Can someone help me figure out the answer to: 3 5/8 + 4 2/3? (please explain working?)

ivanzaharov [21]

You would first make the fractions improper (making the numerator bigger then the denominator) in order to do that times the denominator with the whole number and add the numerator.
Ex) 3*8 = 24 + 5 = 29/8
Then you would add both of the improper fractions

3 0

3 years ago

Help please, I don't understand!!! D:

ch4aika [34]

The answer is 2 hours because from 5 to 7 the temperature was raising

4 0

3 years ago

Read 2 more answers

Let f(x)=8x+8 find and simply f(x+1)

shusha [124]

Answer:

Step-by-step explanation: