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Luda [366]
4 years ago
8

Preston set his watch 15 seconds behind, and it falls behind another 10 seconds every day. How far behind is Prestons watch if h

e last set it 4 days ago? write and solve and equation to find the answer
Mathematics
1 answer:
Veseljchak [2.6K]4 years ago
5 0

Answer:

55

Step-by-step explanation:

10x4+40+15

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Simplify the expression: 2x2(5x2+4x+2
Mandarinka [93]

Answer:

4(10+4x+2)

Step-by-step explanation:

2*2 = 4

5 *2 + 10

then put the rest.

5 0
3 years ago
Determime the intercepts of the line that passes through the following points. (-6,5);(-3,3);(0,1)
butalik [34]

well for a line, to get its slope all we need is two points, so let's use (-6, 5) and (0, 1), and get the equation of it.


\bf (\stackrel{x_1}{-6}~,~\stackrel{y_1}{5})\qquad
(\stackrel{x_2}{0}~,~\stackrel{y_2}{1})
\\\\\\
slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{1-5}{0-(-6)}\implies \cfrac{1-5}{0+6}\implies -\cfrac{5}{6}


\bf \begin{array}{|c|ll}
\cline{1-1}
\textit{point-slope form}\\
\cline{1-1}
\\
y-y_1=m(x-x_1)
\\\\
\cline{1-1}
\end{array}\implies y-5=-\cfrac{5}{6}[x-(-6)]\implies y-5=-\cfrac{5}{6}(x+6)
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
\textit{to get the x-intercept, we set y = 0, solve for \underline{x}}
\\\\\\
0-5=-\cfrac{5}{6}(x+6)\implies -30=5x+30\implies -60=5x
\\\\\\
\cfrac{-60}{5}=x\implies -12=x~\hfill \boxed{\stackrel{x-intercept}{(-12,0)}}


now, where's the y-intercept of that line?  well, to get the y-intercept, we set x = 0 and solve for "y"....hmmmm wait a second, notice (0, 1), x = 0, y = 1, that's the y-intercept already.

7 0
4 years ago
The city's central library has 72,864 books. The library has 72 bookcases. If each bookcase has room for the same number of book
marin [14]

Answer:

1012

Step-by-step explanation:

DO 72,864 divided by 72 :D

3 0
3 years ago
Read 2 more answers
Caroline is trying to earn money to pay for her field trip by doing odd jobs around the house. She needs to raise more than $35
aev [14]
What are the options?
6 0
3 years ago
The newborn baby, Jake, needs some supplies. Jake's mom gave you this list of things he needs. You and your friend have agreed t
Elan Coil [88]

Answer:

You have $23 left to spend on diapers for Jake.

Step-by-step explanation:

To be able to find the answer, first you need to calculate the amount you would spend on blanket:

$115*15%=$17.25

Now, you need to calculate the amount you would spend on toys:

$115*25%=$28.75

Then, you need to calculate the amount you would spend on clothes:

$115*40%=$46

Now, you need to add this values up and subtract the total from $115:

$17.25+$28.75+$46=$92

$115-$92=$23

According to this, the answer is that you have $23 left to spend on diapers for Jake.

3 0
4 years ago
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