When x = 2, y = 50 and when x = 4, y = 100. Which direct variation equation can be used to model this function?

2 answers:

Taya2010 [7]4 years ago

8 0

Y=25x because if you were plug in the x for both equations:

y=25 (2)
y=50

y=25 (4)
y=100

It would be the same value as y.

hjlf4 years ago

5 0

The answer is y=25x

bc 25x2=50 and 25x4=100

You might be interested in

i need help with number 2 on left side i dont need to find out what x is i need to figure out what degrees each corner is to equ

Aloiza [94]

So what is the question

5 0

3 years ago

judy got 117 problems right on a math test in her night school class. She got a score of 78% right. How many problems were on th

scZoUnD [109]

You would set this up as Part÷Whole=Percent÷100
Part=117
Whole= X
Percent=78
117÷X=78÷100
Set these up as fractions and cross multiply. You will get 117×100=78X
117×100=11,700
Divide both sides by 78 and you get x=150
There were 150 problems

6 0

3 years ago

Evaluate each expression using the order of operations (4-7)^2-6(7)+20

LekaFEV [45]

The anwser would be -13

Step-by-step explanation:

PARENTHESIS

EXPONENTS

MULTIPLICATION

DIVISION

ADDITION

SUBTRACTION

3 0

3 years ago

A triangle has sides with lengths of 65 in 72 in and 97 in is it a right triangle?

Ray Of Light [21]

Answer:

yes

Step-by-step explanation:

By pythagoras' theorem,

97^2 = 9409

65^2 + 72^2 = 9409

since 65^2 + 72^2 = 97^2, the triangle is a right angled triangle

This is a question on Pythagoras theorem. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)

6 0

3 years ago

What number should be added to both sides of the equation to complete the square?

lubasha [3.4K]

Answer:

9 should be added to both sides of the equation to complete the square.

Step-by-step explanation:

Given : $x^2 -6x = 5$