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3 years ago

7

Could someone give me a basic lesson on how to convert fractions into decimals? I have a retest coming up

1 answer:

marin [14]3 years ago

4 0

You divide for example 1/2=0.5 try it on your calculator I don't know if it helps that much but this is how I learned it, you do the division. It was a long time ago :)

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PLEASE HELP! A positive number is 1/3 of another number. The sum of the numbers is five less than the square of the larger numbe

antoniya [11.8K]

Answer: The numbers are 1 and 3.

Step-by-step explanation:

Let x = smaller number , y= larger number.

As per given,

$x=\dfrac{y}{3}$ ...(i)

$x+y=y^2-5$ ...(ii)

Put value of x from (i) in (ii)

$\dfrac{y}{3}+y=y^2-5\\\\\Rightarrow\ \dfrac43y=y^2-5\\\\\Rightarrow\ 3y^2-4y-15=0\\\\\Rightarrow\ 3y^2-9y+5y-15=0\\\\\Rightarrow\ 3y(y-3)+5(y-3)=0\\\\\Rightarrow\ (y-3)(3y+5)=0\\\\\Rightarrow\ y=3 \ \ or\ y=\dfrac{-5}{3}$

Since numbers are positive , so y=3 is correct.

And x will be 1 [from (i)]

Hence, the numbers are 1 and 3.

7 0

2 years ago

A pool has a depth of 12 feet and a width of 14 feet.If it holds 1680 cubic feet of water, what is the length of the pool?

Novay_Z [31]

12 x 14 x L = 1680

168 x L = 1680

L = 1680 / 168

L = 10 feet

3 0

3 years ago

....................

Viefleur [7K]

Answer:

<em>C:</em><em> </em><em>is</em><em> </em><em>co</em><em>rrect</em><em> answer</em>

<em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em><em>-</em>

<em> $3 \times {10}^{5}$ </em>

7 0

3 years ago

Read 2 more answers

A right cylindrical solid is cut in half to form the figure shown. If the length is 20 cm and the diameter is 8 cm, what is the

kogti [31]

The answer for this question is C

4 0

3 years ago

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Me QR goes through points Q(0, 1) and R(2, 7). Which equation represents line QR?

maks197457 [2]

We write the equation in the form of directional.

y -1 = 6x ⇔ y = 6x + 1

y - 1 = 3x ⇔ y = 3x + 1

y - 7 = 2x - 6 ⇔ y = 2x - 6 + 7

y = 2x + 1

y - 7 = x - 2 ⇔ y = x - 2 + 7

y = x + 5

Equations cleverly arranged .

Point Q = (0,1)

b factor , not only fits the last equation

In the drawing have engraved points Q and R are tangent linear function appropriate to that point . This graphics solution . y = 3x + 1

Answer b

We check choice by the system of equations , where substitute wartoćsi points Q and R to the model equations linear function

The result of equations confirmed our choice Answer b

3 0

2 years ago