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Mamont248 [21]
2 years ago
11

6= square root of x+ 1

Mathematics
1 answer:
blondinia [14]2 years ago
8 0
I'm going to answer this as a process going down:
√x+1=6       The statement
x+1=6²        Move the sqrt to the other side
x=6²-1         As well as the +1
x=36-1        Simplified the equation
x=35           Final answer
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A number is decreased by 40% to 525. what is the original amount?​
zhenek [66]

Answer:

875

Step-by-step explanation:

lets assume the original amount X

the new amount = X - ( X × 40% )

525 = (60 × X) ÷ 100

X = ( 525 × 100 ) ÷ 60

<u>X = 875</u>

6 0
2 years ago
Read 2 more answers
Each polygon pair is similar. Find the missing side length
ohaa [14]

I'll do problem 1 to get you started.

The vertical sides are 3 and x for the left and right figures.

The horizontal sides are 15 and 60 for the left and right figures.

The corresponding sides form fractions which are equal (due to the nature of the similar polygons)

3/x = 15/60

3*60 = x*15 ... cross multiply

180 = 15x

15x = 180

x = 180/15 .... divide both sides by 15

x = 12

----------

Another way you can see this is note how the jump from 15 to 60 is "times 4", so the jump from 3 to x must also be "times 4" to keep the same proportion

3 ---> x = 3*4 = 12

Or you could set up the proportion

60/15 = x/3

4 = x/3

x/3 = 4

x = 3*4

x = 12

-----------

<h3>Final Answer: 12</h3>
3 0
3 years ago
Write the equation of a line that is perpendicular to y=5 and that passes through the point (−7,−5)
nordsb [41]

x =  - 7 \\  \\ hope \: it \: helps

6 0
2 years ago
Read 2 more answers
Solve
SSSSS [86.1K]
The correct answer would be $204.80 because if she keeps doubling whats in the bank the amount after the $ .20 then it would be doubled to $ .40 and so on
5 0
2 years ago
Para armar un prisma cuadrangular, Edgar trazó la plantilla y lo dividió en seis secciones, como se muestra en la imagen
Llana [10]

Answer:

1. x^{2} + x^{2} + (10\cdot x) \cdot (4)

Step-by-step explanation:

(This exercise is written in Spanish and therefore explanation will be held in such language)

El área de este polígono regular es la suma de las áreas de los 4 rectángulos y 2 cuadrados, es decir:

A_{tot} = 4\cdot A_{r} + 2 \cdot A_{c}

A_{tot} = 4 \cdot (10)\cdot x + 2\cdot x^{2}

El cual corresponde con la opción 1.

4 0
3 years ago
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