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3 years ago

Rectangles. Please help!

Mathematics

1 answer:

nataly862011 [7]3 years ago

7 0

First you have to canceled out the fours from both side 4x/4-12/4 so x=3 then you do the same thing to the 7x-18

4x-12.
4x/4-12/4. So x=3
The fours cancelled out

7x-18
7x/7-18/7. So x= 2 4/7
The sevens cancelled out

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The second option

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Step-by-step explanation:

So its -34

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3 years ago

A number cube is rolled 120 times. The number 4 comes up 47 times. What is the experimental probability of rolling a 4? What is

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A number cube is rolled 120 times. The number 4 comes up 47 times.

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So, Option B is the correct answer.

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3 years ago

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Um número é o quíntuplo do outro e a soma dos dois é 54. De acordo com essas informações, podemos afirmar que a diferença entre

NNADVOKAT [17]

Answer:

Step-by-step explanation:

A partir das informações fornecidas, as seguintes equações podem ser modeladas:

$X=5Y\\X+Y=54\\$

Resolvendo o sistema:

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3 years ago

Solve the system using substitution 5y-x=-5 7y-x=-23

dlinn [17]

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x=5y+5

7y-(5y+5)= -23

7y-5y-5= -23

2y= -23+5

2y= -18

y= -9

x= 5y+5

x= (5*-9)+5

x= -45+5

x= -40

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3 years ago