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tigry1 [53]
3 years ago
15

What number is 40% of 135​

Mathematics
2 answers:
worty [1.4K]3 years ago
7 0

Answer:

54

Step-by-step explanation:

40       ?

---    =   -----

100     135

Cross Multiply then Divide.

54

---

135

otez555 [7]3 years ago
7 0

Answer:

54

Step-by-step explanation:

So, the first thing we need to do here is set up a proportion: \frac{40}{100} =\frac{x}{135}. This is because 40%=40/100, so if 135 was 100%, x would be 40% of that.

To solve the equation, first cross multiply.

\frac{40}{100} =\frac{x}{135} --> \frac{135*40}{100x}

--> 5400=100x

x=54

Checking your work:

40/100= 2/5

54/135= 2/5

This means your answer is correct.

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Can you help me with this?
WARRIOR [948]

Answer:

<h2>88 units squared</h2>

Step-by-step explanation:

I'll solve both of the triangles separately and then add it all together.

Triangle 1;

5*4*0.5 =

10

Triangle 2;

5 * 4 * 0.5 =

10

Rectangle;

17 * 4 =

68

(10 + 10 + 68) =

88

Thus, the area of the trapezoid is 88un.^2

4 0
3 years ago
6. A super-bouncy-ball is thrown 25m into the air. The ball falls, rebounds to 70% of the height of the previous bounce and fall
inn [45]

Answer:

The total distance the ball has travelled after it hits the ground the 5th time is of 48.53m.

Step-by-step explanation:

Geometric sequence:

In a geometric sequence, the quotient of consecutive terms is the same. The nth term of a geometric sequence is given by:

a_n = a_1q^{n-1}

In which a_1 is the first term and q is the common ratio.

A super-bouncy-ball is thrown 25m into the air. The ball falls, rebounds to 70% of the height of the previous bounce and falls again.

This means that:

q = 0.7, a_1 = 25*0.7 = 17.5

Then

a_n = a_1q^{n-1}

a_n = 17.5(0.7)^{n-1}

First 5 terms:

a_1 = 17.5

a_2 = 17.5(0.7)^{2-1} = 12.25

a_3 = 17.5(0.7)^{3-1} = 8.58

a_4 = 17.5(0.7)^{4-1} = 6

a_5 = 17.5(0.7)^{5-1} = 4.2

Find the total distance the ball has travelled after it hits the ground the 5th time.

T = 17.5 + 12.25 + 8.58 + 6 + 4.2 = 48.53

The total distance the ball has travelled after it hits the ground the 5th time is of 48.53m.

8 0
3 years ago
What is the answer of 6xy + (-9xy)
kati45 [8]

Answer:

-3xy

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
3 ones - 22 tenths equal
Ronch [10]
The answer if you are looking for it this way.2.23
8 0
3 years ago
Question 4 (Essay Worth 10 points)
Over [174]

The 3-D shape would be created if the figure was rotated around the x-axis is a cone

<h3>What are 3-D shapes?</h3>

3-D shapes (short form of 3-Dimensional shapes) are shapes that have width, length and height

<h3>How to determine the 3-D shape?</h3>

The coordinates are given as:

(0, 0), (-3, -4) and (-3, 0)

When the above coordinates are plotted on a coordinate plane and the points are connected;

We can see that the points form a right-triangle

See attachment for the shape

As a general rule

Rotating a right-triangle across the x-axis would form a cone

Hence, the 3-D shape would be created if the figure was rotated around the x-axis is a cone

Read more about rotation at:

brainly.com/question/4289712

#SPJ1

8 0
2 years ago
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