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3 years ago

Explain why the expression y+y+y and 3y are equivalent?

1 answer:

7 0

Each variable that doesn’t have a number in front of it is an invisible 1. Since y, y, and y are like terms because they have the same exponent and variable. Because they are like terms you can add and subtract them. So 1y+1y+1y= 3y

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Hi guys guess any two song

Lunna [17]

Answer:

Step-by-step explanation:

let me love you song,maybe

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3 years ago

Read 2 more answers

I need some help please!!

shtirl [24]

X is minus 30 over 7
So you can cross multiply and multiply the values.
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3 years ago

79%

REY [17]

9514 1404 393

Answer:

Step-by-step explanation:

The two expressions for her salary can be equated:

2h +4 = 4 +4h

0 = 2h . . . . . . . . subtract 2h+4 from both sides

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3 years ago

Henry sends his hawk with a message to his uncle. The hawk flies out against the wind and returns with the wind, spending 3 hour

siniylev [52]

Answer:

Distance between Henry and his uncle is <u>74.25km.</u>

Step-by-step explanation:

Speed of Hawk with wind = 50+5

=55km/hr

Speed of Hawk against wind = 50-5

=45km/hr

we know that ,

$Distance = speed \times time$

Let the distance between Henry and uncle is d,

According to the question ,

$\frac{d}{55} + \frac{d}{45} = 3$

$\frac{9d + 11d}{495} =3$

$20d = 3\times 495$

$d =\frac{3\times495}{20}$

d= 74.25km

Hence , the answer is 74.25km

5 0

4 years ago

Write 77.5% as a fraction or mixed number in simplest form.

Delicious77 [7]

Answer:

The answer is $77\frac{1}{2}$ .

Step-by-step explanation:

Given:

77.5%.

Now, to write as a fraction or mixed number in simplest form.

77.5%

So, we divide by 10 by removing decimal as decimal is at tenth place.

= $\frac{775}{10}$

So, simplifying it:

$=\frac{155}{2}$

Now, we change into mixed fraction:

$=77\frac{1}{2}$

Therefore, the answer is $77\frac{1}{2}$ .

7 0

3 years ago