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IgorLugansk [536]
3 years ago
12

The length of a rectangle is 2 cm less than 4 times its width. If its

Mathematics
2 answers:
AlladinOne [14]3 years ago
6 0

Answer:

L=4W-2

P=2L+2W

36= 2(4W-2)+2W

36= 8W-4 +2W

36= 10W-4

36+4=10W

40=10W

40/10=W

W=4

L=4(4)-2

L=14

AREA =L(W)

AREA = 4X14

AREA =48 cm

Naily [24]3 years ago
5 0

Answer:

Step-by-step explanation:

L=4W-2\\ \\ P=2(L+W)\\ \\ 2(4W-2+W)=36\\ \\ 5W-2=18\\ \\ 5W=20\\ \\ W=4,\ L=14\\ \\ A=4(14)=56cm^2

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4 years ago
Which expression would be easier to simplify if you used the associative
rodikova [14]

Answer:

<em>A . 0.85 + (0.15 +(-3)) = -2</em>

<em>B . [(-3)+(-3)]+(-3) = - 9</em>

Step-by-step explanation:

<u><em>Explanation</em></u>:-

<em>Associative  property with addition</em>

<em>(a+(b+c)) = (a+b) + c</em>

A)

Given 0.85 + (0.15 +(-3)) = (0.85 +0.15)+(-3)

                                       = 1 - 3

                                       = -2

B)  Given [(-3)+(-3)]+(-3) = ( (-3)+[( -3)+(-3))]

                                     = ( -3 +[-3-3]

                                    =  -3 -6

                                    = -9

<u><em>Final answer:</em></u>-

<em>A . 0.85 + (0.15 +(-3)) = -2</em>

<em>B . [(-3)+(-3)]+(-3) = - 9</em>

 

       

6 0
3 years ago
Please help me please!!!!!
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Answer:

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Step-by-step explanation:

21 + 21 = 42 cm 11 + 11 = 22 cm

42 + 22 = 64 cm

6 0
3 years ago
Read 2 more answers
What is the solution to this system of equations?
murzikaleks [220]

Answer:

(5,1)

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You already have x isolated in the second one so you just fill that in for the first one and get y+4+y=6. Then you simplify and get that y=1 and because only one of the answer choices shows that, you just pick that choice which is (5,1).

5 0
3 years ago
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