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pickupchik [31]
3 years ago
8

How do i simplify -2x - y - 2z ???

Mathematics
1 answer:
MaRussiya [10]3 years ago
5 0
- (2x+y+2z) = -(2(x+z) + y)
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Need help with this asap please
Rainbow [258]
Since they are similar, that means they are proportionally the same.
So KL is similar to PN
JL is similar to PM

So,
You need to find how much bigger is the second triangle from first.
It is proportionally scaled up.

KL/JL = PN/ PM

You basically put in order of triangles. Left triangle on left side of equal sign and right triangle on right side of equal sign. You put in denominator the similar sides and numerator the similar sides (the side that is similar to the side of the other triangle)

5/6 = PN / 9
Cross-multiply
PN * 6 = 5*9
6PN = 45
PN =45/6

PN =7.5
5 0
2 years ago
Write the equation for nancy started the year with $425 in the bank and is saving $25 a week. sam started with $875 and is spend
Zina [86]
X is the amount of weeks.
Equation: 425+25x=875-15x

Solve for x:
25x+15x=875-425
40x=450
x=11.25
The answer is 11.25 weeks.
5 0
3 years ago
How do you factor 2y^2 +13 +21
ella [17]

Answer:

2

(

y

2

+

17

)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
How much money should be invested at 5% interest, compounded quarterly, so that 7 years later the investment will be worth $5000
vampirchik [111]
\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\to &\$5000\\
P=\textit{original amount deposited}\\
r=rate\to 5\%\to \frac{5}{100}\to &0.05\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{quarterly, four times}
\end{array}\to &4\\
t=years\to &7
\end{cases}
\\\\\\
5000=P\left(1+\frac{0.05}{4}\right)^{4\cdot 7}\implies 5000=P(1.0125)^{28}\\\\\\ \cfrac{5000}{(1.0125)^{28}}=P
8 0
3 years ago
you want to treat some of your friends to the movies, and you have $75 to spend. If each ticket costs $10, and you want to purch
netineya [11]

Answer:

5 friends

Step-by-step explanation:

Since the snacks are worth $25, it is deducted from the total

10x=75-25

10x=50

x=5

5 0
3 years ago
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