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3 years ago

2x – 3y = 18 Solve for y.

Mathematics

1 answer:

Nataly [62]3 years ago

7 0

Answer:

y= -6+2/3x

Step-by-step explanation:

2x-3y=18

Minus the 2x from both sides

-3y=18-2x

Then divide both sides by -1

-3y÷-1=18÷-1 -2x÷-1

Lastly divide both sides by 3

3y÷3= -18÷3+2x÷3

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Expression A Expression B Expression C (−5)(−0.4)(1.8) (-45)(-19)(-112) −1(5+17) Expression D Expression E Expression F (−5)(−0.

kramer

Answer:

Expressions A, E, and F

Step-by-step explanation:

In general, when negative integers are multiplied; if the negative integers are even, then the product would be positive. But if the negative integers are odd, then the product would be negative.

Thus,

A. (−5)(−0.4)(1.8) = (2.0)(1.8)

= 3.6

B. (-45)(-19)(-112) = (855)(-112)

= -95760

C. −1(5+17) = -1(22)

= -22

D. (−5)(−0.4)(1.8)(−3.25) = (2.0)(-5.85)

= -11.7

E. (-49)(-34)(-12)(-12) = (1666)(144)

= 239904

F. −1(3.5−7) = -1(-3.5)

= 3.5

Thus expressions A, E and F have positive products.

4 0

3 years ago

1. What is the constant of proportionality, k, of Kevin's wage? Greg's? Savannah's?

Gala2k [10]

Answer:

Part a) The constant of proportionality of Kevin's wage is $k=\$8.25\ per\ hour$

Part b) The constant of proportionality of Greg's wage is $k=\$9.00\ per\ hour$

Part c) The constant of proportionality of Savannah's wage is $k=\$9.50\ per\ hour$

Step-by-step explanation:

See the attached figure to better understand the problem

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

To find out the constant of proportionality k , divide the variable y (total earned) by the variable x (number of hours)

Kevin's wage

Take any point from the table

I take the point (2,16.50)

$k=\frac{16.50}{2}=\$8.25\ per\ hour$

Greg's wage

Take any point from the table

I take the point (3,27.00)

$k=\frac{27.00}{3}=\$9.00\ per\ hour$

Savannah's wage

Take any point from the table

I take the point (2,19.00)

$k=\frac{19.00}{2}=\$9.50\ per\ hour$

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3 years ago

4+2(a+5) -2(-a-4) help me solve this

Ainat [17]

Are you wanting it simplify?

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What is payday on the 1st and 15th referred as (2 times a month)? *

Gnoma [55]

Answer:

b, semi-monthly

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3 years ago

What is the value of 16 1/4

Sergio039 [100]

Answer: The value of 16 1/4 is 16.25

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