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LenaWriter [7]
3 years ago
12

2/5 x 2/3???????????​

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
6 0

<u>Equation/Question:</u>

2/5 x 2/3 = ?

<u>Answer/Steps to answer:</u>

1. Use this rule: a/b x c/d = ac/bd

2x2/5x3

2. Simplify  2×2  to 4.

4/5x3

3. Simplify 5×3  to 15.

<u>4/15</u>

<u></u>

<u>Done by NeighborhoodDealer</u>

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Please help me omg i will mark brainliest (look at the picture i inserted)
krek1111 [17]

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7 0
3 years ago
Given the points A(-1,2) and B(7,8), find the coordinates of the point P on directed line segment AB that partitions AB in the r
tankabanditka [31]

Now despite what you may believe, <u>1:3 is not 1/3 in this situation.</u> In this case, it means "1 equal part to 3 equal parts", which is a total of 4 equal parts. <u>In short, this question is to place point P 1/4 the distance from A to B.</u>

Firstly, how far apart is -1 from 7 (the x-coordinates)? That would be 8 units. Multiply 1/4 by 8:

\frac{1}{4}\times \frac{8}{1}=\frac{8}{4}=2

Next, how far apart is 2 from 8 (the y-coordinates)? That would be 6 units. Multiply 1/4 by 6:

\frac{1}{4}\times \frac{6}{1}=\frac{6}{4}=\frac{3}{2}

Next, since from -1 to 7 you are <em>increasing</em>, add 2 to -1:

-1+2=1

1 is your x-coordinate

Next, since from 2 to 8 you are <em>increasing</em>, add 3/2 to 2:

\frac{2}{1}\times \frac{2}{2}=\frac{4}{2}\\\\\frac{4}{2}+\frac{3}{2}=\frac{7}{2}

7/2 is your y-coordinate.

<u>Putting it together, your answer is A. (1, 7/2)</u>

5 0
4 years ago
If x=3 is a solution of the equation 2x²-5x+k=0 find the value of k​
Novosadov [1.4K]

Answer:

k = - 3

Step-by-step explanation:

Given that x = 3 is a solution then it satisfies the equation, that is

2(3)² - 5(3) + k = 0

2(9) - 15 + k = 0

18 - 15 + k = 0

3 + k = 0 ( subtract 3 from both sides )

k = - 3

8 0
3 years ago
Read 2 more answers
What is the integer there are at least 38 women in the house
Elan Coil [88]

1 \frac{1}{?2}
4 0
3 years ago
The loudness, L, of a sound (measured in decibels, dB) is inversely proportional to the square of the distance, d, from
kifflom [539]

Answer:

The jetski is 2.28 dB loud when the person is 41 feet away.

Step-by-step explanation:

Loudness (L) ∝ 1 / Distance² (d²)

Introduce a constant 'K'

L = K (1/d²)

L = K/d²

K = Ld²

Find the K from a previously known information: If a person 8 feet from a jetski hears 60 decibels loud

∴ d = 8 ft , L = 60 db

K = 60(8²) = <em>3840</em>

How loud is the jetski when the person is 41 feet away?

Distance is now 41 ft

since: L = K/d²

∴ L = 3840 / 41²

L = 3840 / 1681

L = 2.28 db

3 0
3 years ago
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