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Lesechka [4]
3 years ago
8

Plssss helppppp I need this for my homework

Mathematics
2 answers:
Fed [463]3 years ago
7 0

Answer:

First divide the 1 and 5 then 4 and 7 then 5 and 2

Studentka2010 [4]3 years ago
4 0

Answer:

The correct answer is,

2 \frac{15}{28}

I'm 100000000% sure.

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How can knowing how to represent proportional relationships in different ways be useful to solving problems
Anna35 [415]

Answer:

  appropriately writing the proportion can reduce or eliminate steps required to solve it

Step-by-step explanation:

The proportion ...

  \dfrac{A}{B}=\dfrac{C}{D}

is equivalent to the equation obtained by "cross-multiplying:"

  AD = BC

This equation can be written as proportions in 3 other ways:

  \dfrac{B}{A}=\dfrac{D}{C}\qquad\dfrac{A}{C}=\dfrac{B}{D}\qquad\dfrac{C}{A}=\dfrac{D}{B}

  Effectively, the proportion can be written upside-down and sideways, as long as the corresponding parts are kept in the same order.

I find this most useful to ...

  a) put the unknown quantity in the numerator

  b) give that unknown quantity a denominator of 1, if possible.

__

The usual method recommended for solving proportions is to form the cross-product, as above, then divide by the coefficient of the variable. If the variable is already in the numerator, you can simply multiply the proportion by its denominator.

<u>Example</u>:

  x/4 = 3/2

Usual method:

  2x = 4·3

  x = 12/2 = 6

Multiplying by the denominator:

  x = 4(3/2) = 12/2 = 6 . . . . . . saves the "cross product" step

__

<u>Example 2</u>:

  x/4 = 1/2 . . . . we note that "1" is "sideways" from x, so we can rewrite the proportion as ...

  x/1 = 4/2 . . . . . . written with 1 in the denominator

  x = 2 . . . . simplify

Of course, this is the same answer you would get by multiplying by the denominator, 4.

The point here is that if you have a choice when you write the initial proportion, you can make the choice to write it with x in the numerator and 1 in the denominator.

8 0
3 years ago
- 2(w+6) +9&lt; - 15<br><br>I'm make you brainliest​
navik [9.2K]
It is 9lt-2w-27! Hope it helped!
4 0
3 years ago
Read 2 more answers
First three numbers of Pi?
MArishka [77]

Answer: 3.14

Step-by-step explaination:  worry this is it i got you

4 0
3 years ago
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A ladybugs length measures 2 cm express this measurement in meters. explain your thinking. include an Equation with an exponent
Tcecarenko [31]

Answer:

Length of lady bug in meters is:

0.02

Step-by-step explanation:

A ladybugs length measures 2 cm.

We have to express this measurement in meters.

We know that 1 m=100 cm

1 cm= 1/100 m

      =0.01 m

2 cm=2×0.01 m

      =0.02 m

Hence, Length of lady bug in meters is:

0.02

5 0
3 years ago
Read 2 more answers
Find the distance between the points (<br> –<br> 8,1) and (<br> –<br> 2,9).
Simora [160]

Answer:

Find the distance between the points (

Step-by-step explanation:

4 0
3 years ago
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