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2 years ago

Help please!!!!!!!!!

Mathematics

1 answer:

ANEK [815]2 years ago

4 0

The answer is (8,40.32)

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Are these expressions equivalent explain why or why not? 42+35 and 7( 6+5)

scoundrel [369]

Answer:

Step-by-step explanation:

An algebraic expression must contain and unknown value to solve for.

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2 years ago

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-3x + 5x - 2x + 5x simplifies to

boyakko [2]

Answer:

Step-by-step explanation:

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2 years ago

How much money should be invested at 5% interest, compounded quarterly, so that 7 years later the investment will be worth $5000

vampirchik [111]

$\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\to &\$5000\\
P=\textit{original amount deposited}\\
r=rate\to 5\%\to \frac{5}{100}\to &0.05\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{quarterly, four times}
\end{array}\to &4\\
t=years\to &7
\end{cases}
\\\\\\
5000=P\left(1+\frac{0.05}{4}\right)^{4\cdot 7}\implies 5000=P(1.0125)^{28}\\\\\\ \cfrac{5000}{(1.0125)^{28}}=P$

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2 years ago

18 Soft and her family drove through 6 midwestern states on their vacation, where as prices varied by state

shepuryov [24]

Answer:

<em>The range is 50.3</em>

Step-by-step explanation:

<em>The range of a data set in statistics is the difference between the largest and the smallest values.</em>

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2 years ago

Find the total cost of these items, including tax. Round

solniwko [45]

Answer:

Flashlight ; = $2.99

Water bottle = $1.50

Toothbrush = $1.29

Compass = $3.29

Step-by-step explanation:

Sales tax = 7%

Item: _____ price

Flashlight ; = $3.20

Water bottle = $1.61

Toothbrush = $1.38

Compass = $3.52

Total cost = price of item + sales tax

Sales tax = 7%

Total cost = (1 + 7%) * price of item

Total cost = (1 + 0.07) * price of item.

Total cost = 1.07* price

Flashlight = 1.07*1.29 = $3.20

Water bottle = 1.07*1.50 = $1.61

Toothbrush = 1.07*1.29 = $1.38

Compass = 1.07*3.29 = $3.52

6 0

2 years ago