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dexar [7]
3 years ago
10

I don't know how to solve this at all. please help​

Mathematics
1 answer:
dybincka [34]3 years ago
3 0

Answer:

5. 97

Step-by-step explanation:

Well, we know that all we have to do is add QRP and PRS. so 71+25 is 96 (but put 97). For the other one you can do 2x-5=x+1. Then you just solve for x. For the y value you do the same thing, 3y=5y+3. So, x=2 but y=1.5 but its not an answer choice... I know the second one didn't help you, sorry. :(

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What is the surface area of the sides and closed rectangular end? ____ sq. ft.
Alenkasestr [34]
Without the roof panels, the surface area (except for the open panel) is 176.25 sq. ft.
With the roof panels, the surface area (except for the open panel) is 196.67 sq. ft. 

The area of the rectangular sections (the sides without gables) is given by 10*6 = 60 sq. ft.  There are two of these sides, for a total of 2*60 = 120 sq. ft.

The gables are triangles, which have an area formula of
A = 1/2bh

For the gables, this is 1/2(1.5)(7.5) = 5.625 sq. ft.  Since there are two of them, this makes 2*5.625 = 11.25 sq. ft.

The closed side under a gable has an area of 6*7.5 = 45 sq. ft.

The two roof panels have an area of (4 1/12)(2 1/2) each:
49/12(5/2) = 245/24

There are two of them, which makes 490/24 = 20.42 sq. ft.

Without the roof panels, we have 45+11.25+120 = 176.25 sq. ft.
With the roof panels, we have 45+11.25+120+20.42 = 196.67 sq. ft.
4 0
4 years ago
For each reaction between a ketone and an amine, draw the curved arrow(s) to show the first step of the mechanism, then draw the
Ray Of Light [21]

Answer:

Step-by-step explanation:

Aromatic amine is generally less nucleophilic than aliphatic amine because of the aromatic delocalisation of the lone pair. Ketones are also less reactive compared to aldehyde and Reaction between aromatic amine and aromatic ketone is possible leading to the formation of Schiff's base in aqeous ethanoic solution.

6 0
3 years ago
If x + 3/ 3 = y + 2/ 2 , then x/ 3 = _______.
Naddik [55]

Answer:

The correct answer is y/2

Step-by-step explanation:

It is given that,

(x + 3)/ 3 = (y + 2)/ 2

<u>To find x/3</u>

(x + 3)/ 3 = (y + 2)/ 2

⇒ x/3 + 3/3 = (y + 2)/2

x/3 + 1 =  (y + 2)/2

x/3 =  (y + 2)/2 - 1

x/3 =  (y + 2)/2 -2/2

x/3 = (y + 2 - 2)/2

x/3 = y/2

Therefore the correct answer is x/3 = y/2

4 0
3 years ago
Factor the following using greatest common factor 6x^2y^3 - 3x^5yz +15x^2y^2
Georgia [21]

Answer:

-3 x^2 y (x^3 z - 2 y^2 - 5 y)

Step-by-step explanation:

6(x^2)(y^3)

3(x^5)(y)(z)

15(x^2)(y^2)

take the least power:

x : 2

y : 1

z : 0

6,3,15: 3

Greatest common factor:

3(x^2)(y)

Factorize:

-3 x^2 y (x^3 z - 2 y^2 - 5 y)

8 0
3 years ago
What is the ratio 175 to 250 written in fraction in LOWEST TERMS?
Lana71 [14]
For 175 : 250 divide them both by 25 to get \frac{7}{10} < \frac{175}{250}
25 goes into 175 > 7 times > 25 into 250 is 10 times! > \frac{7}{10}
For the second one 16 : 40 just divide the top and bottom by 8 since 8 is a common factor of both which will give us \frac{2}{5}.
8 goes into 16, 2 times and 40, 5 times.
5 0
4 years ago
Read 2 more answers
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