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3 years ago

A/75=15/100 help me in this :(

Mathematics

2 answers:

DerKrebs [107]3 years ago

5 0

Answer:

a=11.25

Step-by-step explanation:

a/75=15/100

a/75=0.15

*75 *75

a=11.25

Svetach [21]3 years ago

4 0

a / 75 = 15 / 100

100a = 75 * 15 [cross multiplication]

a = 11.25

i hope this helps!!! :D

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Give this problem a try and try to solve this

tia_tia [17]

Answer:

No solution

Step-by-step explanation:

Given equation is,

$\frac{x^{\frac{1}{2}}+x^{-\frac{1}{2}}}{1-x}+\frac{1-x^{-\frac{1}{2}}}{1+x^\frac{1}{2}}-\frac{(4+x)^\frac{1}{2}}{(1-x)^\frac{1}{2}}=0$

$\frac{x^{\frac{1}{2}}+x^{-\frac{1}{2}}}{1-x}+\frac{1-x^{-\frac{1}{2}}}{1+x^\frac{1}{2}}=\frac{(4+x)^\frac{1}{2}}{(1-x)^\frac{1}{2}}$

$\frac{(x+1)}{\sqrt{x}(1-x)}+\frac{(\sqrt{x}-1)}{\sqrt{x}(1+\sqrt{x})}=(\frac{4+x}{1-x})^{\frac{1}{2}}$

$\frac{(\sqrt{x}+1)(x+1)+(\sqrt{x}-1)(1-x)}{\sqrt{x}(1-x)(1+\sqrt{x})}=(\frac{4+x}{1-x})^{\frac{1}{2}}$

$\frac{x\sqrt{x}+x+\sqrt{x}+1+\sqrt{x}-1-x\sqrt{x}+x}{\sqrt{x}(1-x)(1+\sqrt{x})}=(\frac{4+x}{1-x})^\frac{1}{2}$

$\frac{2x+2\sqrt{x}}{\sqrt{x}(1-x)(1+\sqrt{x})}=(\frac{4+x}{1-x})^\frac{1}{2}$

$\frac{2(\sqrt{x}+1)}{(1-x)(1+\sqrt{x})}=(\frac{4+x}{1-x})^\frac{1}{2}$

$\frac{2}{1-x}=(\frac{4+x}{1-x})^\frac{1}{2}$ if x ≠ ±1

$(\frac{2}{1-x})^2=\frac{4+x}{1-x}$ [Squaring on both the sides of the equation]

$\frac{4}{(1-x)}=(4+x)$

4 = (1 - x)(4 + x)

4 = 4 - 4x + x - x²

0 = -3x - x²

x² + 3x = 0

x(x + 3) = 0

x = 0, -3

But both the solutions x = 0 and x = -3 are extraneous solutions, given equation has no solution.

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4 years ago

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Step-by-step explanation:

10/27

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3 years ago

Jordie wants to save $175 for a trip to an amusement park. He sets aside $14 of his allowance at the end of each week. How many

ki77a [65]

Answer:

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Step-by-step explanation:

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3 years ago

HELP MEE! SHOW WORK! FILL IN THE QUESTION MARKS!

lara31 [8.8K]

9514 1404 393

Answer:

42 students; (28 students); 70 students
(60%); 40%; (100%)

Step-by-step explanation:

The percentages total 100%, so the missing percentage is

100% - 60% = 40%

The numbers on the number lines are proportional, so now you can write ...

?/100% = 28/40% . . . . . . ? total students

Multiplying by 100% gives ...

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3 years ago

Y = -5x - 8<br> y = 4x + 1

vodka [1.7K]

Answer:

X= -1

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Step-by-step explanation:

y=-5x-8

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Y=4(-1)+1

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Y=-3

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4 years ago