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Leviafan [203]
3 years ago
13

Consider this system of equations. Which shows the first equation written in slope-intercept form? 1/2(2y+10)=7x

Mathematics
2 answers:
AysviL [449]3 years ago
8 0

Answer:y=7x-5

Step-by-step explanation:

notka56 [123]3 years ago
3 0

Answer:

y=7x - 5 is in slope intercept form

Step-by-step explanation:

\frac{1}{2}(2y+10)= 7x

We need to write the equation in slope intercept form

Slope intercept form of the equation is y=mx+b

where m is the slope and b is the y intercept

To get the equation in slope intercept form we need to get y alone

\frac{1}{2}(2y+10)= 7x

Multiply 1/2 inside the parenthesis

y+5 = 7x

To get y alone , subtract 5 from both sides

y=7x - 5 is in slope intercept form

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Two old RSM students were standing ten feet apart when they ran in opposite directions with speeds of 180 feet per minute and 16
inessss [21]

The number of minutes that would pass before they were 1870 feet apart is 5.47 minutes

  • Since one student runs at a speed of 180 feet per minutes, in time t minutes, he moves a distance of d = 180t.
  • Also, the second student runs at a speed of 160 feet per minute, in time t minutes, he moves a distance of d' = 160t.

Since they are initially 10 feet apart, their total distance apart after t minutes is D = d + 10 + d'

D = 180t + 10 + 160t

D = 340t + 10

<h3>Number of minutes before they are 1870 feet</h3>

Making t subject of the formula, we have

t = (D - 10)/340

Since they are 1870 feet apart after t minutes, D = 1870 feet.

t = (D - 10)/340

t = (1870 - 10)/340

t = 1860/340

t = 5.47 minutes

So, the number of minutes that would pass before they were 1870 feet apart is 5.47 minutes

Learn more about minutes of distance apart here

brainly.com/question/8783264

7 0
2 years ago
What is the solution of the system ?Use substitution.<br> Y= -3x<br> X + y = -4
DedPeter [7]
I hope this helps you



x-3x= -4


-2x= -4


x=2


y= -3.2



y= -6
4 0
3 years ago
Learn with an example
Marina86 [1]

Answer:

\large{\textbf{f(g(x)) = 20}\\}

Step-by-step explanation:

\large{\textup{Given}:\\$f(x) = 5x $ \hspace{5mm} \& \hspace{5mm} $g(x) = 4x $\\$$ f \circ g(x) = f(g(x))  $$\\$ \implies f(g(x)) = f(5x) $\\\textup{i.e., To substitute $5x$ instead of $x$ in $f(x)$}\\$\implies f(5(x)) = 4(5(x)) = 20x \\ $\textup{Now,}$f(g(1)) = 20(1) =20$}

7 0
3 years ago
Evaluate the expression |x-10| when x= -8<br><br> a. -8<br> b. -18<br> c. 8<br> d. -18
nordsb [41]
|x-10| when x = -8
| - 8 - 10 | = |-18| = 18 <==
4 0
3 years ago
It takes Maya 30 minutes to solve 5 logic puzzles and it takes Amy 28 minutes to solve 4 logic puzzles use models to show the ra
Contact [7]

Answer:

MAYA (6 minutes)

Amy (7 minutes)

Step-by-step explanation:

MAYA

Takes Maya 30 minutes to solve 5 Puzzle:

Let's express it as,

30 mins = 5 Puzzle

1 min = x Puzzle

Cross multiply to solve for the number of questions Maya solves in a minute.

It becomes:

30*x = 5*1

30x = 5

x = 30/5

x = 6mins.

It means it takes Maya 6 mins to solve one question.

FOR AMY

Takes Amy 28 mins to solve 4 puzzles.

Let's represent it as:

28 mins = 4 Puzzles

x min = 1 puzzle

Let's solve for x

(28 mins) * (1 puzzle) = 4 * x

28 = 4x

x = 28/4

x = 7 mins

It means, it takes Amy 7 minutes to solve 1 puzzle

3 0
3 years ago
Read 2 more answers
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