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3 years ago

Please help i will mark brainlist

Mathematics

2 answers:

faltersainse [42]3 years ago

8 0

Answer:

Its a half page per minute, 15 is half of 30, so it takes 2 minutes to read a page, so they read half a page a minute.

-BARSIC- [3]3 years ago

6 0

Answer: 2 pages per min

Step-by-step explanation: if they can read 15 pages in 30 min then they will read 2 pages every min

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Given the expression below, what are the missing values, respectively?

asambeis [7]

Answer:

Step-by-step explanation:

20=4*5

9=4+5

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3 years ago

What is the slope of the line (-3,0) and (1,-6)

iren2701 [21]

Answer is provided in the image attached.

6 0

4 years ago

Plz help me will give brainlest I hate my math teacher and the ones I need help with are 3-7

victus00 [196]

I can't do 3 and 4 for you but I can do 5 6 and 7.

5. Hotel B

6. Hotel B

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4 years ago

Read 2 more answers

Polygon CCC has an area of 404040 square units. K 2ennan drew a scaled version of Polygon CCC using a scale factor of \dfrac12 1

nikdorinn [45]

Answer:

Area of polygon D = 10 square units

Step-by-step explanation:

Given:

Polygon C has an area of 40 square units.

It is scaled with a scale factor of $\frac{1}2$ to form a new polygon D.

To find:

The area of polygon D = ?

Solution:

When any polygon is scaled to half, then all the sides of new polygon are half of the original polygon.

And the area becomes one-fourth of the original polygon.

Let us consider this by taking examples:

First of all, let us consider a right angled triangle with sides 6, 8 and 10 units.

Area of a right angled triangle is given by:

$A = \dfrac{1}{2} \times Base \times Height\\\Rightarrow A = \dfrac{1}{2} \times 6 \times 8 = 24\ sq\ units$

If scaled with a factor $\frac{1}{2}$ , the sides will be 3, 4 and 5.

New area, A':

$A' =\dfrac{1}{2} \times 3 \times 4 = 6\ sq\ units = \dfrac{1}4\times A$

i.e. Area becomes one fourth.

Let us consider a rectangle now.

Sides be 8 and 10 units.

Area of a rectangle, A = $Length \times Width$ = 8 $\times$ 10 = 80 sq units.

Now after scaling, the sides will be 4 and 5 units.

New Area, A' = 4 $\times$ 5 =20 sq units

So, $\bold{A' = \frac{1}4 \times A}$

Now, we can apply the same in the given question.

$\therefore$ Area of polygon D = $\bold{\frac{1}{4}}$ $\times$ Area of polygon C

Area of polygon D = $\bold{\frac{1}{4}}$ $\times$ 40 = 10 sq units

4 0

3 years ago

(07.06 MC) What is the solution to the equation 1.2m − 0.8 = −2.0m? m = 0.25 m = 0.4 m = 1 m = 4

Vikki [24]

Answer:

m = 0.25

Step-by-step explanation:

-0.8 = -3.2m

m = 0.25

8 0

3 years ago