Ask question

Ask question

All categories

2 years ago

12

The number of students in a chess club decreased from 28 to 11. What is the percent decrease? Round your answer to the nearest p

ercent. (If correct I'll give brainiest)

1 answer:

atroni [7]2 years ago

8 0

Answer:

28-11=17

28=100%

17=x

17×100/28=60,71

rounded 61%

60,71%

11/28*100=a

a-100=60,71

to nearest percent 61 i think

You might be interested in

Is 6/6 more than 3/3

hodyreva [135]

They are both equivalent to 1, so they are equal.

4 0

3 years ago

Hey what's the answer ?<br><img src="https://tex.z-dn.net/?f=%28%20%7By%7D%5E%7B2%7D%20%20%2B%20%20%5Cfrac%7B5%7D%7B7%7D%20%29%2

3241004551 [841]

Answer: $y^4$ + $\frac{-73}{35}y^2$ - $2$

Step-by-step explanation:

Use FOIL:

$y^4$ + $\frac{-14}{5}y^2$ + $\frac{5}{7}y^2$ + $\frac{-70}{35}$

Make $\frac{-14}{5}y^2$ and $\frac{5}{7}y^2$ have the same numerator:

$\frac{-14*7}{5*7}y^2 =\frac{-98}{35}y^2$

$\frac{5*5}{7*5} y^2=\frac{25}{35} y^2$

Then add like terms and simplify:

$y^4$ + $\frac{-98}{35}y^2$ + $\frac{25}{35} y^2$ + $\frac{-70}{35}$

$y^4$ + $\frac{-73}{35}y^2$ - $2$

7 0

3 years ago

Read 2 more answers

vivado [14]

Answer:

A) Commutative

Step-by-step explanation:

The Associative has to do with re-grouping numbers. There are only two numbers so this does not apply here. Commutative is where you change the order; that's what the equation is demonstrating.

7 0

3 years ago

Read 2 more answers

Please help me use the picture 25 points

enyata [817]

Answer:

31.581 grams rounded to the nearest tenth is 31.6

3 0

3 years ago

Read 2 more answers

Pls help WILL GIVE BRAINLIST

myrzilka [38]

Answer:

<u>135.94 feet</u>

Step-by-step explanation:

Split the problem into two parts :

Distance between viewer and building
Height of the top part of the building

<u>Distance between viewer and building</u>

The lower part of the building is 40 feet, as it is mentioned the viewer is 40 feet above street level
Let the distance be called 'd'
Therefore, tan37° = 40/d
tan37° = 3/4 = 0.75
⇒ 40/d = 0.75
⇒ d = 40/(3/4) = 40 x 4/3 = 160/3 = 53.3 feet

<u>Height of the top part of the building</u>

Let the height of the top part be 'h'
Therefore, tan61° = h/d = h/53.3
tan61° = 1.8
⇒ h/53.3 = 1.8
⇒ h = 53.3 x 1.8 = 95.94 feet

<u>Total height of building</u>

Lower part + Top part
40 + 95.94
<u>135.94 feet</u>

<u />

3 0

2 years ago