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MatroZZZ [7]
3 years ago
12

Can you please help with expressions and equations

Mathematics
1 answer:
slamgirl [31]3 years ago
4 0
Number 1 is 23-7=16
Number 3 is 19-2=17
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Solve: The width of a rectangle is 4 less than the length. The area is 10 ft. Find the width.
garri49 [273]

This is pretty straight forward.

First the area of a rectangle is given by the product of the length and the width and in this case the area is known.

Second the length is an unknown and since we are doing algebra lets call it x

Finally the width is 4 less than the width which is (x-4) units....x will be in meters and the width is 4 meters less then the length.

Putting it together we have x(x-4) = 117 m^2

then

x^2 - 4x = 117

one could use the solution for the quadratic or one could plug in a few numbers as test for the length

10 by 10 is 100 square meters

10 by 14 is 140 square meters

13 by 9 is 117 square meters....x is 13 and x-4 is 9

I used approximation once I had determined the relationship between the area of the rectangle and the perimeter of the rectangle

4 0
4 years ago
A dinosaur park cost $5.00 to enter plus $0.75 taxes. How much does it cost if a family of 4 went to the park
Alekssandra [29.7K]
I think 20.75 i’m not completely sure
8 0
3 years ago
If X = {−1, 0, 2} and Y = {1, 2, 5}, find X ∪ Y.
Irina18 [472]

yo sup??

as mentioned earlier XUY is simply the summation of all the unique elements of X and Y

S=XUY

={-1,0,1,2,5}

Therefore your answer is option 1 ie

1.{-1,0,1,2,5}

Hope this helps.

5 0
4 years ago
Read 2 more answers
What is the gcf of 16 24 and 36
Nutka1998 [239]

Answer:

4

Step-by-step explanation:

Calculate Greatest Common Factor for :

   16, 24 and 36

Factorize of the above numbers :

   16 = 2^{4}  

   24 = 2^{3} • 3  

   36 = 2^{2} • 3^{2}  

Build a prime factors table

   Number of times each prime factor

   appears in the factorization of :

Prime  Factor     Number  16   Number  24   Number  36    G.C.F   (min)  

2 4 3 2 2

3 0 1 2 0

GCF = 2²

Greatest Common Factor is :

     4

Hope this helps :)

7 0
4 years ago
I can't help solve my friends problems,I got too much to do help him out please
andreev551 [17]

Answer:

the ask a question about the question isnt working

Step-by-step explanation:

but can you zoom in its really glitchy and blurred from far away

4 0
3 years ago
Read 2 more answers
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