MATHEMATICS MIDDLE SCHOOL

Write the equation of the line given the slope and a point through the line passes
-3,(2,-5)

Answers

Answer 1
Answer:

Answer:

y+5 = -3(x-2)

Step-by-step explanation:

We can use point slope form

y - y1 = m(x-x1)

We have a point and a slope

y - -5 = -3(x-2)

y+5 = -3(x-2)
Answer 2
Answer:

Answer:

(5 + 2)(5-3)

Step-by-step explanation:

just did it on edg!

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Wich box is greater, a 1.5- pound box of raisins or a 650-gram box of rocks?

Answers

❅☃ 1.5 pounds.
❅☃ 1.5 pounds weighs 680.389 grams.
❅☃ Leaving it higher then the 650 gram box of rocks. 
The first step of this is to convert them both to the same unit. since 1 pound is equal to .45 kg, .45*1.5=.68 kg. now we need to convert kg to grams, when we do this we get 680 grams of raisins and 650 grams of rocks. we can obviously see that the box of raisins is heavier.

Which calculation could be used to determine thearea of this square?
A=5+5
A=5x5
A=5+5+5+5
A= 4x5

Answers

Answer:

5x5

Step-by-step explanation:
A=Length x Width

So it would be 5x5

How do you solve the equation 0.4(2x+0.5)=3[0.2x+(-2)]-4

Answers

 0.4(2x+0.5)=3[0.2x+(-2)]-4 

 0.8x+0.2=0.6x-6-4  

0.8x-0.6x=-6-4-0.2 

 0.2x=-10.2  

x=-10.2/0.2 

 x=-51
0.4(2x+0.5)=3[0.2x+(-2)]-4

0.8x+0.2=0.6x-10

0.2x=-10.2

x= (-10.2)/(0.2)

x=-51

5. The steps for solving the equation 3x + 13 = x + 27 are shown below. What property justifiesthe second step in the solution?
(1 point)
3x+13 = x+27
Step 1: -x - x
2x+13=
2x+13 = 27
Step 2: 1-13 -13
= 14
14
Step 3: 2
2
O additive identity
O additive inverse
O substitution
O subtraction property of equality

Answers

Answer:

D. Subtraction property of equality.

Step-by-step explanation:

We have been given an equation 3x+13=x+27. We are asked the property used in the second step of equation to solve it.

Step 1:

3x+13=x+27

Step 2:

3x-x+13=x-x+27

We can see that x is subtracted from both sides of equation.

We know that subtracting same quantity from both sides of equation is known as subtraction property of equality.

Therefore, option D is the correct choice.

Answer:

In step 2 we applied the subtraction property of equality

Step-by-step explanation:

The subtraction property of equality tells us that if we subtract from one side of an equation, we also must subtract from the other side of the equation to keep the equation the same.

In step 2 we did that:

2x + 13 - 13 = 2x + 27 - 13

(2x + 0 = 2x + 14)

2x = 2x + 14

Hey, I do not want the answer but could someone please explain to me on HOW to find the area of this figure? I forget how to :P

Answers

In order to find the area of this figure, you will need to separate the individual figures and find their areas, then add the total for the entire area.

The square part should be easy, it's only base * height. In this case, the base is 6 and the height is 5. You don't want the answer so that's the farthest I'll go with that =)

Then, there are the triangles.
Right triangles are easy to find area of in that they are simply a rectangle split diagonally, so the area of a triangle is simply base * height over 2, and since the triangles are the same measure, the base would be half the base of the square, which is 3. The height is 2.

Don't forget that there are two triangles, though, so a shortcut in this problem would be to solve one triangle for base * height and then leave off the divide by two step, since there are two triangles that have the same area, and so you would end up just multiplying by 2 in the end, thereby cancelling out the divide by 2 step entirely.

Hope that helped! =)

Ivan had saved some quarters. He spent 50 quarters, which was 2/5 of the quarters he started with. How many quarters did he start out with?

Answers

since 50 was 2/5 of the total, 25 must be 1/5. multiply 25*5 to get the total of 125 quarters ($31.25 in case you were wondering)
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