2 years ago

Como tabular 2x - 3y = 2 4x + y= 24

Mathematics

1 answer:

pickupchik [31]2 years ago

6 0

Answer:

Are we doing substituion or elimination

Step-by-step explanation:

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S22 for 161+147+133+119+...

kramer

The arithmetic sequence of 161,147,133,119
Compute the general progression formula of 161,147,133,119 d=-14, a↓n+175
Compute ᵃ₂₂ = -133

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3 years ago

How many 3 digit numbers can be made if no digit is repeated and the number can not begin with a zero?

lapo4ka [179]

digit #1 - 9 numbers (1-9)

digit #2 = 9 numbers (0-9 minus the first digit)

digit #3 = 8 numbers ( 0-9 minus the first 2 digits)

9*9*8 = 648 combinations

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Help me I don’t understand I’m very confused

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3 years ago

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In an ensemble of gongs, all gongs have a diameter of either ten inches, or twelve inches or fifteen inches. In the collection t

patriot [66]

Answer: Option 'E' is correct.

Step-by-step explanation:

Since we have given that

Let the total number of gongs be 'g'.

Number of ten inch gongs = 18

Let the number of 12 inch gongs be 'x'.

Let the number of 15 inch gongs be 'y'.

so, equation would be

$18+x+y=g$

Half of the gongs are tiger gongs is given by

$t=\dfrac{g}{2}\\\\g=2t$

Half of the 12 inch gongs are not tiger gongs

so, number of tiger gongs which is of 12 inch = $\dfrac{x}{2}$

Among the tiger gongs, there are equal numbers of ten inch, twelve inch and fifteen inch.

$\dfrac{x}{2}+\dfrac{x}{2}+\dfrac{x}{2}=t\\\\\dfrac{3x}{2}=t$

Half of the gongs are of 15 inch is given by

$y=\dfrac{g}{2}\\\\2y=g$

Since we have

$g=2t\\\\g=2\times \dfrac{3x}{2}\\\\g=3x\\\\\dfrac{g}{3}=x$

so, According to question, it becomes,

$18+\dfrac{g}{2}+\dfrac{g}{3}=g\\\\18+\dfrac{5g}{6}=g\\\\18=g-\dfrac{5g}{6}\\\\18=\dfrac{6g-5g}{6}=\dfrac{g}{6}\\\\18\times 6=g\\\\108=g$

Hence, Option 'e' is correct.

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3 years ago

Is the discriminant of g positive, zero, or negative

AleksandrR [38]

Answer: negative

Step-by-step explanation:

the x values are negative

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