How would you write the following phrase as a number expression?eight more than triple a number.

Answers

Answer 1
Answer: The answer would be 8 + 3x

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What is the slope of a line perpendicular to the following line?

-7y+ 8x=9

Answers

Answer:

m = -(7)/(8)

Step-by-step explanation:

Finding the slope of the given line

We need to find the slope of this equation to find the slope of a line perpendicular to it. This means we must solve for y.

Start off by subtracting 8x from both sides of the equation to start isolating the variable y.

-7y=9- 8x

Now solve for y by dividing both sides of the equation by -7.

y=(9-8x)/(-7)

This can be broken into two parts by distributing the negative sign from the -7 into the 9 and -8x like so:

y=(-9)/(7) +(8x)/(7 )

The slope of a line is the coefficient of x, so in this case the slope of the given line (-7y+8x=9) is (8)/(7).

Finding the slope of a line perpendicular to the given line

Two lines that are perpendicular would have opposite reciprocal slopes, which means the perpendicular slope would be the negative counterpart and would be flipped.

For example, if you have 2 as the slope of one of the perpendicular lines, the other line would be the opposite (-2) reciprocal (-(1)/(2)).

Therefore, since we have the slope of one of the perpendicular lines (the given line), we would find the opposite reciprocal of it's slope to solve this problem.

Slope: (8)/(7)

  • Opposite: -(8)/(7)
  • Reciprocal: -(7)/(8)

The slope of the line perpendicular to -7y+8x=9 is -(7)/(8).

- Students at a school went on a trip. The given equation models the total costof the trip, where x is the number of students who went on the trip.
18x = 900
How many students went on the trip?

Answers

Answer:

50

Step-by-step explanation:

18x=900

divide 900 by 18 and you get x which equals 50

you can check your answer by multiplying 18x50=900

Tell whether the ratios form a proportion. 9/4, 2/3

Answers

Answer:

No ratios do not form a proportion.

Step-by-step explanation:

For example you take these fractions 9/4 and 2/?

9 - 2

4 - ?

Solve: 4×2÷9= about 0.9

0.9≠ 3

The florida panther has an average height of 30 inches. It is 20 inches taller than the northern mockingbird. Write and solve an equation to find the average height of the northern mockingbird.

Answers

30-20=x 30 for the height of panther and 20in taller so u subtract 20 from 30

Please answer ASAP! An explanation is a MUST requirement in order to receive points and the Brainliest answer. Thank you.

Answers

the smaller the MAD, the closer the data points are together

harbor times are lss

C is answer
The answer would be C.

Because the smaller the number the mean is, then that means the numbers/values are closer together.

So, the conclusion that can be drawn is C., the harbor city track team's 200 m times are less than Lake View's.

What is the recursive formula for this geometric sequence

6, -24, 96, -384,...

Answers

Answer:

see explanation

Step-by-step explanation:

The recursive formula allows us to calculate the next term in the sequence from the previous term.

The common ratio r = (-24)/(6) = - 4

Thus multiplying any term by - 4 gives the next term, that is

a_(n+1) = - 4 a_(n) with a₁ = 6