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3 years ago

What is the constant of proportionality in the equation y=1/2x

Mathematics

1 answer:

grandymaker [24]3 years ago

8 0

Answer:

1/2

Step-by-step explanation:

y = (1/2)x has the format y = kx, where k is the const. of prop. In this particular case that const. of prop. is (1/2).

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If f(x)=-2x+9, then find the value of the x value that makes F(x)=-22

Lostsunrise [7]

-22 = -2x + 9
-31 = -2x
-31/-2 = x
x = 15.5

5 0

3 years ago

The sum of a number and 5 decreased by twice the number.

GREYUIT [131]

<h3>Answer: -x+5</h3>

This is the same as 5-x

Work Shown:

x = unknown number

x+5 = sum of the number and five

x+5-2x = that previous sum decreased by twice the unknown number

-x+5 = combine like terms

8 0

3 years ago

Read 2 more answers

1) What is the nth term of the sequence -1,3,7,11,...?

Sliva [168]

Answer:

Use the formula Tn=a+(n-1)d

a= the first term in the sequence which is - 1

d=the difference between the terms which is 4

Tn= -1+(n-1)(4)

Tn=-1+4n-4

Tn=4n-5

4 0

3 years ago

Which of the following describes a correct method for solving the equation: -7/2n + 5= -16 A. Add 5 to both sides, then devide b

solniwko [45]

Answer:

If the use the method ''Add -5 to both sides, then multiply both sides by -2/7'', we can get the value n = 6.

Thus, the correct option is 'C'.

Step-by-step explanation:

Given the equation

$-\frac{7}{2}n+5=-16$

Let me solve this using the correct method

$-\frac{7}{2}n+5=-16$

Add -5 to both sides

$-\frac{7}{2}n+5+\left(-5\right)=-16+\left(-5\right)$

simplify

$-\frac{7}{2}n=-21$

Multiply both sides by -2/7

$-\frac{7}{2}n\times -\frac{2}{7}=-21\times -\frac{2}{7}$

simplify

$n=6$

Therefore, if the use the method ''Add -5 to both sides, then multiply both sides by -2/7'', we can get the value n = 6.

Thus, the correct option is 'C'.

4 0

3 years ago

Mark as BRAINLIEST if you are right

KiRa [710]

Answer:

Step-by-step explanation:

7+8+4=19

4/6 + 3/6 + 1/6 = 1 2/6

19 + 1 1/3

20 1/3

7 0

3 years ago