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ch4aika [34]
2 years ago
9

Simplify-3/7(y-28)-1/21y

Mathematics
1 answer:
Stells [14]2 years ago
7 0

Answer:

Step-by-step explanation:

I will assume that you meant:  (-3/7)(y-28) - (1/21)y

Using the distributive property of multiplication, we get:

(-3/7)y + (3/7)(28) - (1/21)y

Let's first reudce the middle term.  We get:  12

Then we have:

(-3/7)y + 12 - (1/21)y

Here there are two different denominators.  We must combine the y terms.  The LCD here is 21.  Multiplying (-3/7)y by 21/21, we get the equivalent:

-9y

------ + 12 - (1/21)y

 21

or:

-9y          21

------ + 12----- - (1/21)y

 21           21

Combining the y terms, we get (-10/21)y:

-10y      252

------- + -------- = (1/21)(-10y + 252)

 21          21

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Answer:

See explanation

Step-by-step explanation:

cos62˚ ≈ 0.469

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2 years ago
PLS HELP ASAP ILL GIVE BRAINLKEST THANKS
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Answer:

(4,4)

Step-by-step explanation:

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astraxan [27]

4x____ = 6 so that both sides equal 24

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in an election an amount of votes was share among parties A,B and C in the ratio of 1:2:4. How many votes party B obtained if pa
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1000

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Let the share of votes obtained by the parties A, B and C be x, 2x and 4x respectively.

According to the given information:

No of votes obtained by C = 1500 + No of votes obtained by A

\therefore 4x = 150. + x \\\\\therefore 4x - x = 1500\\\\\therefore 3x = 1500\\\\\therefore x = \frac{1500}{3} \\\\\therefore x = 500\\\\\because Votes \:obtained\: by \:B = 2x \\\\\therefore Votes \:obtained\: by \:B = 2\times 500\\\\\purple {\bold {\therefore Votes \:obtained\: by \:B = 1000}} \\\\

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2 years ago
Carrie place is a 10 foot ladder against the wall if the ladder makes an angle of 65° with the level ground how far up the wall
natita [175]

Answer:

9......

Step-by-step explanation:

A right-angled triangle in the image below will be formed.

Now, we will make use of the trigonometric rule......

But before that, how do know the perfect rule to apply so as to solve the problem?

#. The side facing the angle 65 deg. is called the Opposite side

#. The side facing the angle 90 deg. is called the Hypotenuse

#. While the last side is called the Adjacent

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3 years ago
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