MATHEMATICS MIDDLE SCHOOL

Is (-1, 2) a solution?

Answers

Answer 1

Answer:

Answer:

It can be an answer to many things.

Step-by-step explanation:

There needs to be some sort of picture or other item to explain what is going on.

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Find the area of this figure

Answers

Answer:

132 cm squared

Step-by-step explanation:

Find the area of the rectangle on the top first.

Finding the area of a rectangle:

The formula to find the area of a rectangle is to multiply the length by the width. So for your rectangle you would do

7 x 4 = 28cm squared. Keep this is mind and we will move on the the next problem.

The figure under the rectangle is a trapezoid.

To find the area of a trapezoid:

Step 1)

Average the bases.

The dotted line is 7 cm. This is a base.

The line on the very bottom is 19 cm. This is your 2nd base. Find the average of these bases.

(7 + 19) / 2

= 26/2

=13

Step 2)

Multiply this by the height. The height of the trapezoid is 8 cm.

Multiply:

13 x 8

This would get you 104. This is the area of the trapezoid.

Add 104 to the area of the rectangle, 28, to get 132.

The area of the whole figure, therefore, is 132cm squared.

I hope this helps!

Unit rate for 15 degrees in 2 hours

Answers

A unit rate is something per one.

That means that we also need to include units so that we could know what we are talking about.

Basically divide, since this one is simple.

15/2 = 7.5

7.5 degrees per hour is our unit rate

help me please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

so thi sis really simple since you have an equal sign so

(n/3)-(5n/6)=1/3
to subtract fractions, make the bottom number the same
n/3 times 2/2=2n/6
(2n/6)-(5n/6) or (2n-5n)/6 so
-3n/6=1/3
multiply both sides by 6
-3n=6/3=2
-3n=2
divide both sides by 3
-n=2/3
mmultiply boht by -1
n=-2/3
tada
n=-2/3

$\frac { n }{ 3 } -\frac { 5n }{ 6 } =\frac { 1 }{ 3 } \n \n n\left( \frac { 1 }{ 3 } -\frac { 5 }{ 6 } \right) =\frac { 1 }{ 3 } \n \n n\left( \frac { 2 }{ 6 } -\frac { 5 }{ 6 } \right) =\frac { 1 }{ 3 }$

$\n \n -\frac { 3 }{ 6 } n=\frac { 1 }{ 3 } \n \n -\frac { 1 }{ 2 } n=\frac { 1 }{ 3 } \n \n \frac { 1 }{ 2 } n=-\frac { 1 }{ 3 } \n \n 2\cdot \frac { 1 }{ 2 } n=-\frac { 1 }{ 3 } \cdot 2\n \n n=-\frac { 2 }{ 3 }$

A coconut tree has 12 coconuts on it. If 25% of the coconuts fell to the ground, how many fell to the ground?