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pav-90 [236]
2 years ago
8

-1/4 + (-3/7) what is the answer???

Mathematics
2 answers:
SVEN [57.7K]2 years ago
7 0
Find the Least Common Denominator (LCD) which is 28.

-1/4 (7) = -7/28

-3/7 (4) = -12/28

-7 - 12 = -19

-19/28

Simplify if you can.
Anni [7]2 years ago
3 0

Answer

it is -19/28

Step-by-step explanation:

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What is the equation of the line passing through the points (3,6) and (2,10)
andrezito [222]

Answer: y= - 4x+18

Step-by-step explanation:

Equation: y=mx+b

***remember: b is the y-intercept and m is the slope.

m=\frac{y2-y1}{x2-x1}

3= x1

2= x2

6= y1

10=y2

m=\frac{10-6}{2-3}= \frac{4}{1}= -4

m=-4

Now we have y=-4x+b , so let's find b.

You can use either (x,y) such as (3,6) or (2,10) point you want..the answer will be the same:

   (3,6). y=mx+b or 6=-4 × 3+b, or solving for b: b=6-(-4)(3). b=18.

   (2,10). y=mx+b or 10=-4 × 2+b, or solving for b: b=10-(-4)(2). b=18.

Equation of the line: y=-4x+18

3 0
3 years ago
Answer as soon as possible please !
creativ13 [48]

Answer:

60

Step-by-step explanation:

4/3 = x/45

45/3=15

15*4=60

x=60

4 0
3 years ago
Use the model to solve for x. A) x = -2 B) x = 4 C) x = 8 D) x = 12
Goryan [66]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the sum of twenty and thirty
bonufazy [111]
Fifty , 50 20+30=50, not sure if its asking much else

8 0
3 years ago
Read 2 more answers
Find the x- and y- intercepts of the equation 7x+ 14 y=28
7nadin3 [17]

Chapter : Linear equations

Lesson : Math for Junior High School

7x + 14y = 28

if want to find x and y, we must substitution value 0 to the equation x and y :

# If x = 0, then :

7x + 14y = 28

= 7(0) + 14y = 28

= 0 + 14y = 28

= 14y = 28 → y = 28/14

= y = 2

# If y = 0, then :

7x + 14y = 28

= 7x + 14(0) = 28

= 7x + 0 = 28

= 7x = 28 → x = 28 / 7

= x = 4

and that result was proven x = 4 and y = 2

5 0
3 years ago
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