4 years ago

Pls help me with this questions. Look at the image

Mathematics

1 answer:

Andrei [34K]4 years ago

5 0

21 is 19 get ur facts straight

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This year, Diane watched 15 movies. She thought that 9 of them were very good. Of the movies she watched, what percentage did sh

Radda [10]

Answer:

60%

Step-by-step explanation:

To write 9/15 as a percent have to remember that 1 equal 100% and that what you need to do is just to multiply the number by 100 and add at the end symbol % .

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3 years ago

.If 3x+ 6 = 5x -10,then the value of x is

trapecia [35]

Answer:

X=8

Step-by-step explanation:

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16=2X

X=8

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3 years ago

Find b, given that a = 20, angle A = 30°, and angle B = 45° in triangle ABC

Kamila [148]

<span>The side b is opposite to the angle B, applying the law of the sines, we have:

</span> $\frac{a}{sinA} = \frac{b}{sinB}$
$\frac{20}{sin30^0} = \frac{b}{sin45^0}$
$\frac{20}{ \frac{1}{2} } = \frac{b}{ \frac{ \sqrt{2} }{2} }$
$20* \frac{ \sqrt{2} }{2} = b* \frac{1}{2}$
$\frac{20 \sqrt{2} }{2} = \frac{b}{2}$
$2*b =2*20 \sqrt{2}$
$2b = 40 \sqrt{2}$
$b = \frac{40 \sqrt{2} }{2}$
$\boxed{b = 20 \sqrt{2} }$

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3 years ago

Read 2 more answers

20 POINT QUESTION - PLEASE HELP!

mash [69]

After 100 more minutes, the rate has gone from 30 to 80, increasing by 50. 100 divided by 50 is 2 so for every 2 minutes she is charged one dollar, but per minute the rate is 50 cents per minute. Hope this helps :)

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3 years ago

if i have the amount of 182 and i minus $8.00 and $4.30 and i get 172.37 dollars how many do i have left

Blababa [14]

By “i get 172.37” is that adding to the 182 or how much you have left after buying those things.

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4 years ago