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Vera_Pavlovna [14]
3 years ago
5

A package of 24 pencils costs 2.88$. at this rate how much would 30 pencils cost?

Mathematics
1 answer:
ASHA 777 [7]3 years ago
6 0
24➗2.88=0.8 30➗0.8 = 3.75 So the answer is 3.75
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3x + 6y = 4y - 4
gulaghasi [49]

Answer: y = 2/3x + 41/3

Step-by-step explanation:

First convert the equation into slope-intercept  

3x + 6y = 4y  - 4

      -4y    -4y

3x + 2y = -4

-3x            -3x

  2y = -3x - 4

  y = -3/2x - 2  

Perpendicular lines have a negative reciprocal for their slopes.

The negative reciprocal of -3/2  is   2/3

Now using the slope 2/3 you will use the formula  y =mx +b  and input the  slope, and the x and y coordinates of the given point, (-10,7), to solve for the y-intercept.

  7 = 2/3(-10) + b

 7 = -20/ 3 + b  

+ 20/3   + 20/3

  b =  20/3 + 21/3 = 41/3  

Since the the y-intercept is 41/3 then the equation will be , y = 2/3x + 41/3

   

4 0
3 years ago
Consider the following figure:
motikmotik

Answer:

angle <B = 76

Step-by-step explanation:

The measure of an exterior angle is equal to sum of two interior angles that is not adjacent to the exterior angle.

We can write the following equation with this information to find the value of angle <B

<B + 71 = 147 subtract 71 from both sides

<B = 76

5 0
2 years ago
Do any of you guys know the answer to this problem: 4 2/3 -3 1/3
vazorg [7]
The answer is 4/3 and I checked two times

3 0
3 years ago
Read 2 more answers
One bucket of gravel has a mass of 7.05 KG. What is the mass of 20 buckets of gravel in kilograms?
schepotkina [342]

Answer:

D: 141 KG

Step-by-step explanation:

7.05 x 20 = 141

Just multiply the mass of the object by however many objects there are if they all weigh the same.

3 0
3 years ago
Pleas help me sovle this
frozen [14]
What exactly are we solving?? the rest of the angles or the perimeter?
4 0
2 years ago
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