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3 years ago

Plzzzz help! I need it ASAP.

Mathematics

1 answer:

Rudik [331]3 years ago

5 0

Answer:

Step-by-step explanation:

$\frac{2x + 6}{5x - 20} = \frac{2x + 6}{4x + 2} \\\\ 5x - 20 = 4x + 2 \\\ 5x - 4x = 2 + 20 \\\ x = 22$

I hope I helped you.

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How do you write 118% as a fraction, mixed number, or whole number?

Keith_Richards [23]

Answer:

1 9/50

Step-by-step explanation:

So, /(100÷2) = 59/50 when reduced to the simplest form. As the numerator is greater than the denominator, we have an IMPROPER fraction, so we can also express it as a MIXED NUMBER, thus 118/100 is also equal to 1 9/50 when expressed as a mixed number.

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3 years ago

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Write the equation of the line through (-2,1) and parallel to y= -3x+1

DedPeter [7]

Use point slope equation y-y1=m(x-x1) Remember that a parallel line has the same slope.

y-1= -3(x-(-2))
y-1= -3(x+2)
y-1= -3x-6
y= -3x-5

Final answer: y=-3x-5

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3 years ago

The diameter of the bottom of a lamp shade is twice the diameter of the top of the lamp shade. The top of the lamp shade has a 9

GarryVolchara [31]

Answer:

see explanation

Step-by-step explanation:

The circumference (C) is calculated as

C = πd ← d is the diameter

diameter = 2 × 9 = 18 in ( twice the top diameter ), thus

C = 18π in ← exact value ≈ 56.55 in ( to 2 dec. places )

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3 years ago

If you drive at 100km/hr for 6 hours, how far will you go

tatiyna

600km. Because 100 kilometers an hour times 6 equals a distance of 600km.

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The age of a boy is twice that of his sister. five years ago the boy was 3 times the age of his sister. How old is the boy

joja [24]

Answer:

<h2>20 years old.</h2>

Solution,

Let the age of sister be X

Let the age of boy be 2x

Now,

Five years ago,

 $3(x - 5) = 2x - 5 \\ or \: 3x - 15 = 2x - 5 \\ or \: 3x - 2x = - 5 + 15 \\ x = 10$ 

Again,

Replacing value,

 $age \: of \: boy = 2x \\ \: \: \: \: \: \: \: \: \: \: \: \: \: = 2 \times 10 \\ \: \: \: \: \: \: \: \: \: \: \: = 20$ 

hope this helps..

Good luck on your assignment..

7 0

3 years ago