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3 years ago

Plz answer this choice question ;)

Mathematics

2 answers:

lys-0071 [83]3 years ago

8 0

Answer:

Step-by-step explanation:

The way that I would do this is by plugging in 2 values for x, double it then see what happens

Let's say 2

So when we plug in 2 for x we get

5*2=y

y=10

Then what happens when we double x?

Our new equation would be 10x

*we get this becase 5*2=10*

so we plug in to for y=10x and get y=10*2 which is 20. Our answer doubled and therefore the answer is A

Let's do the same thing for number 2 with the number 10

5/10=.5

Then when the value of x triples our new equation is 5/3x

we use this formula and get 5/(3*10)=5/30=1/6=.1666667

This is equal to dividing it by 3 which means the answer is D

avanturin [10]3 years ago

5 0

Answer:

a and d

Step-by-step explanation:

You might be interested in

Apply the distributive property to create an equivalent expression. 6(5x minus 3)

SOVA2 [1]

Answer:

30x - 18

Step-by-step explanation:

6(5x - 3)

To distribute, multiply the outside number by everything inside the parentheses.

6 x 5x = 30x

6 x -3 = -18

30x - 18

I hope this helps!

3 0

3 years ago

The sum of two numbers is 126 and their difference is 42. what are two numbers

Snowcat [4.5K]

Answer:

Step-by-step explanation:

$x,\ y-numbers\\\\\text{The system of equations:}\\\\\underline{+\left\{\begin{array}{ccc}x+y=126\\x-y=42\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad2x=168\qquad\text{divide both sides by 2}\\.\qquad x=84\\\\\\\text{Put the value of}\ x\ \text{to the first equation:}\\\\84+y=126\qquad\text{subtract 84 from both sides}\\y=42$

8 0

3 years ago

I need help

pashok25 [27]

Step-by-step explanation:

[ Refer to the attachment ]

Q 1 was not clear but yet !!

8 0

3 years ago

Determine the constant of proportionality,k,of Kevin’s wage.

ankoles [38]

Answer:

Kevin's constant of proportionality,k = $8.25 per hour

Greg's constant of proportionality,k = $9 per hour

Savannah's constant of proportionality,k = $9.5 per hour

Step-by-step explanation:

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

Solution

y = kx is a proportional variation

Where,

y and x are represent two different variables

k represent constant of proportionality

From the attached table,

Let

y = wages earned (in dollars)

x = hours worked

To find the constant of proportionality k of Kevin's wage, divide the variable y (total earned) by the variable x (number of hours)

Using any points on the table

Take (8,66.00) for example

constant of proportionality k of Kevin's wage = variable y (total earned) / variable x (number of hours)

= 66.00/8

= 8.25

k = $8.25 per hour

B. Constant of proportionality of Greg's wage = variable y (total earned) / variable x (number of hours)

Using (9, 81.00)

k = 81.00/9

= 9

Greg's k = $9 per hour

C. Constant if proportionality of Savannah's wage = variable y (total earned) / variable x (number of hours)

Using (6, 57.00)

k = 57.00/6

= 9.5

Savannah's k = $9.5 per hour

Therefore,

Kevin's constant of proportionality,k = $8.25 per hour

Greg's constant of proportionality,k = $9 per hour

Savannah's constant of proportionality,k = $9.5 per hour

7 0

3 years ago

Please find the angles

bulgar [2K]

Answer:

<1 = 50

<2 = 40

<3 = 90

<4 = 90

<5 = 40

<6 = 50

<7 = 130

Step-by-step explanation:

<5 + <6 = 90

40 + <6 = 90

<6 = 50

<5 = <2 because of vertical angles

<2 = 40

<6 = <1 because of vertical angles

<1 = 50

<7 = <4 + <5

<7 = 90 + 40

<7 = 130

8 0

3 years ago

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