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3 years ago

Do the ratios 20/10 and 1/2 form a proportion?

Mathematics

1 answer:

Tems11 [23]3 years ago

6 0

Answer:

Yes . Divide by 10 for 10/20 to get 1/2.

10/10= 1

20/10= 2

10/20= 1/2

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ASAP please it’s very important

zaharov [31]

Answer:

x = 30° and 330°

Step-by-step explanation:

Assuming the intervals is {0 , 2π} or {0° , 360°}

$tan\ x=\frac{-\sqrt{3} }{3} \\\\x=tan^{-1} (\frac{-\sqrt{3} }{3})\\\\x = -30$

So it means it lies in the 2nd and 4th quadrant because tangent is negative in the 2nd and 4th quadrant

so the two solutions are

x = 30° and 330° or

$x=\frac{\pi }{6}\ radians\ \ , \ \ \frac{11\pi }{6}\ radians$

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3 years ago

Ms. Lee, a single adult, earned $65,000 in taxable income last year. Use the rate table below to calculate how much she must pay

Nookie1986 [14]

I think $16,250 tax. If you need explanation comment

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3 years ago

40 is what percent of 50

fredd [130]

40/50=0.8
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3 years ago

Read 2 more answers

an ostrich egg weighs 2.9 pounds.The difference between the weight of this egg and the weight of an emu egg is 1.6 pounds.write

Alex73 [517]

Answer:

$2.9-w=1.6$

Step-by-step explanation:

Let w be weight of emu egg in pounds.

We have been given that an ostrich egg weighs 2.9 pounds.The difference between the weight of this egg and the weight of an emu egg is 1.6 pounds.

We can represent this information as:

$2.9-w=1.6$

Therefore, the equation $2.9-w=1.6$ will give us the weight of the emu egg, w, in pounds.

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2 years ago

Read 2 more answers

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Andrej [43]

Answer:

10/11>9/11>7/11

Step-by-step explanation:

It is 10 out of eleven which is bigger than 9 out of eleven which is bigger than 7 out of eleven.

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3 years ago