4 years ago

If 3/4 and 12/x are equivalent, what is the value of x?

Mathematics

1 answer:

luda_lava [24]4 years ago

8 0

Answer:

Step-by-step explanation:

3/4 = 12/x

Since 3 × 4 = 12

[Apply the same number with the numerator and denominator]

4 × 4 = 16

x = 16

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Square root for 9/100

Leno4ka [110]

$\sqrt{a}=b\iff b^2=a\ for\ a\geq0\ and\ b\geq0.\\\\\sqrt{\dfrac{9}{100}}=\dfrac{\sqrt9}{\sqrt{100}}=\dfrac{3}{10}$

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3 years ago

Use the Distributive Property and mental math to find the product. 7(28) I need this quick.

Luda [366]

Answer:

196

Step-by-step explanation:

196

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3 years ago

Is 9/20 closer to 0 , 1/2 or 1

larisa [96]

Answer:

1/2

Step-by-step explanation:

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3 years ago

Solve the system of equations.

tino4ka555 [31]

Answer:

(2, 7) or (-6, 1)

Step-by-step explanation:

We are given two equations:

$y=x+5$ ; and

$y = x^2+5x-7$

Since y is the subject for both the equations so we can put the values of y equal to each other to get:

$x+5=x^2+5x-7$

$x^2+5x-x-7-5=0$

$x^2+4x-12=0$

Factorizing the expression to get:

$x^2-2x+6x-12=0$

$x(x-2)+6(x-2)=0$

$(x-2) (x+6) = 0$

$x=2, x= -6$

Putting x = 2 and x = -6 in any of the equations to get the values of y:

$y=x+5$

$y =2+5$

$y=7$

and

$y =(-6)+5$

$y=1$

Therefore, solution to these equation is (2, 7) or (-6, 1).

5 0

3 years ago

Read 2 more answers

If you work 7 1/2 hours for 8 days and make 11 dollars an hour how much do you make at the end of the 8 days?

saw5 [17]

Answer:

$660

Step-by-step explanation:

7.5 * 11 * 8 = $660

5 0

3 years ago