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3 years ago

6+8(y-3/5), if y=8/9

Mathematics

2 answers:

Alexeev081 [22]3 years ago

8 0

Answer:

<em>8 14/45</em>

Step-by-step explanation:

First, place 8/9 anywhere there is a y:

6+8(8/9-3/5)

Next, do what is in the parenthesis. Make both fractions have the same denominator.

6+8(40/45-27/45)

And now subtract:

6+8(13/45)

Now, multiply 8 and 13/45:

6+ 104/45

Convert the fraction to a mixed fraction:

2 14/45

Finally, add 6:

8 14/45

<h3>Hopefully I helped :)</h3>

igor_vitrenko [27]3 years ago

4 0

8 14/45 is your best answer

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You buy a total of 25 burgers and tacos for $67.50. The burgers cost $3.50 each and the tacos cost $2.25 each. Find the number o

Ahat [919]

Answer: you bought 9 burgers and 16 tacos

Step-by-step explanation:

Let x represent the number of burgers that you bought.

Let y represent the number of tacos that you bought.

You buy a total of 25 burgers and tacos. It means that

x + y = 25

The burgers cost $3.50 each and the tacos cost $2.25 each. The total cost of the burgers and tacos that you bought is $67.50. It means that

3.5x + 2.25y = 67.5- - - - - - - - - - - - 1

Substituting x = 25 - y into 1, it becomes

3.5(25 - y) + 2.25y = 67.5

87.5 - 3.5y + 2.25y = 67.5

- 3.5y + 2.25y = 67.5 - 87.5

- 1.25y = - 20

y = - 20/ - 1.25

y = 16

x = 25 - y = 25 - 16

x = 9

5 0

3 years ago

contestants in a dance-a-thon rest for the same amount of time every hour.a couple rests for 25 minutes in 5 hours.how long did

vladimir1956 [14]

Answer

Find out the how long did they rest in 8 hours.

To prove

As given

contestants in a dance-a-thon rest for the same amount of time every hour.

A couple rests for 25 minutes in 5 hours .

25 mintues = 5 hours

$1\ hours = \frac{25}{5}\ mintues$

1 hours = 5 mintues

Thus in 1hours a the dance -a-thon rest for 5 mintues.

Now for 8 hours.

8 hours = 8 × 5 mintues

= 40 mintues

Therefore in 8 hours a dance-a-thon rest for 40 mintues.

3 0

3 years ago

Read 2 more answers

Plz, HELP me with this question!

Tresset [83]

1/6 should be the right answer

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3 years ago

Please help me. This problem is confusing.

lozanna [386]

Check the picture below.

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3 years ago

The function after synthetic division f(x) = 4x3 + 3x2 − 16x − 12

Georgia [21]

Answer:

$\huge\purple{\overline{\quad\quad\quad\quad\quad\quad\quad\quad\quad \ \ \ }}$

»ANSWER«

(1) Write properties of function:

x intercept/zero:

$x_{1} = \frac{3}{4}$

y intercept:

$y = - 12$

domain:

$( - \infty \: \infty )$

type of function: cubic fraction

standard form:

$f(x) = 4 {x}^{3} - 3 {x}^{2} + 16x - 12$

factorize form:

$f(x) = (4x - 3)( {x}^{2} + 4)$

even/odd/neither: neither

bounce/cross x axis:

$x = \frac{3}{4} \: across$

increasing interval:

$( - \infty \: \infty )$

decreasing interval: no

number of positive real zeros: 1

number of possible turning point: 2

order/degree: 3

leading term:

$4x ^{3}$

leading coefficent: 4

constant term: -12

end behavior:

$as \: x \: → \infty f(x) → \infty \: as \: x → - \infty f(x) → - \infty$

#CarryOnLearning

8 0

2 years ago