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2 years ago

5y=2x Can someone explain the steps to solving this

Mathematics

1 answer:

Elena-2011 [213]2 years ago

7 0

Answer:

You can't solve this with only this much info.

Step-by-step explanation:

There are 2 varibles y and x. You have to at least have 2 different equations with only variables y and x or know the value of one. Of course you could guess but then there would be multiple answers. like y=1, x=2.5, etc.

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Jim's car repair charges $50 plus $16 for every pint of oil. Sam's car repair charges $80 plus $14 for every pint of oil. At how

vova2212 [387]

Answer:

5 pints of oil for 8 dollars

Step-by-step explanation:

1.65 dollars for 1 pint

3.4/2=1.7 dollars for 1 pint

8/5=1.6 dollars for 1 pint

17.6/10=1.76 dollars for 1 pint

33/20=1.65 dollars for 1 pint

3 0

3 years ago

John sells hamburgers ($3) and cheeseburgers ($3.50). One afternoon he sells a total of 24 burger for $79. How many of these wer

ankoles [38]

John sold 10 hamburgers and 14 cheeseburgers.

Step-by-step explanation:

Given,

Cost of one hamburger = $3

Cost of one cheeseburger = $3.50

Total burgers sold = 24

Total revenue earned = $79

Let,

Number of hamburgers sold = x

Number of cheeseburgers sold = y

According to given statement;

x+y=24 Eqn 1

3x+3.50y=79 Eqn 2

Multiplying Eqn 1 by 3

$3(x+y=24)\\3x+3y=72\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(3x+3.50y)-(3x+3y)=79-72\\3x+3.50y-3x-3y=7\\0.50y=7$

Dividing both sides by 0.50

$\frac{0.50y}{0.50}=\frac{7}{0.50}\\y=14$

Putting y=14 in Eqn 1

$x+14=24\\x=24-14\\x=10$

John sold 10 hamburgers and 14 cheeseburgers.

Keywords: linear equation, elimination method

Learn more about elimination method at:

#LearnwithBrainly

3 0

3 years ago

Evaluate the trigonometric ratio

vfiekz [6]

Answer:

Step-by-step explanation:

Given $\lim_{x \to 0} \frac{sinxcosx}{x}$

multiply the numerator and denominator with 2

we get $\lim_{x \to 0} \frac{2sinxcosx}{2x}$

We know that sin2x=2sinxcosx

$\lim_{x \to0} \frac{sin2x}{2x}$

Now consider y=2x

As x→0 2x→0 y→0

Now limit changes to

$\lim_{y \to0} \frac{siny}{y}$ =1

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2 years ago

of the 200 guests thay attended a party,132 brought a present for the host .what percent of the guests broight a present ?

nordsb [41]

132/ 200 = .66
66 percent of guests brought a present.

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2 years ago

If a function has a vertical asymptote at a certain x-value, then the function is _____ at that value.

Dmitriy789 [7]

The denominator of the function would be equal to zero so it would be undefined.

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3 years ago

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