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beks73 [17]
2 years ago
5

5+8-2x2 find all the possibilities for each problem by placing parenthesis in different places

Mathematics
1 answer:
erastova [34]2 years ago
6 0
(5+8) - 2x2
5+8 - (2x2)
That’s all I can say Bc you can’t do
5+ (8-2) x2
Or vice versa <3
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A car that originally cost $20,000 depreciates (loses value) by 15% each year. In about how many years will the car be worth hal
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Is the question - did they mistakenly say "dollar" rather than "years?"

x = # of years

10,000 = 20,000 (0.85)^x, first divide both sides by 20,000
0.5 = (0.85)^x,  next take the ln of both sides
ln 0.5 = ln (0.85)^x,  by rules of logarithms you may move x to make it a coefficient of the logarithm
ln 0.5 = x (ln 0.85),  divide both sides by ln (0.85)
x = (ln 0.5)/ (ln 0.85) = (-0.693)/(-0.1625) = 4.26 years





8 0
3 years ago
Ron was vacationing in​ France, when his camera was stolen. As he walked into a camera​ store, Ron noticed that camera prices we
hram777 [196]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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.Natalie has $680 to spend at a bicycle store for some new gear and biking outfits.Assume all prices listed include tax.She buys
Vitek1552 [10]

Answer:

Writing the inequality, we have;

420.56+32.43x\leq680

the solution to the inequality is;

x\leq8

Explanation:

Given that Natalie has $680 to spend at a bicycle store for some new gear and biking outfits.

Total spending must not exceed $680

\text{total spending }\leq680

She buys a new bicycle for $383.33.

• She buys 2 bicycle reflectors for $7.61 each and a pair of bike gloves for $22.01.

She plans to spend some or all of the money she has left to buy new biking outfits

for $32.43 each.

let x represent the number of biking outfits she can buy.

Total spending is;

\begin{gathered} 383.33+2(7.61)+22.01+32.43(x) \\ 420.56+32.43x \end{gathered}

Writing the inequality, we have;

420.56+32.43x\leq680

we can now solve the inequality;

\begin{gathered} 420.56+32.43x\leq680 \\ \text{subtract 420.56 from both sides;} \\ 420.56-420.56+32.43x\leq680-420.56 \\ 32.43x\leq259.44 \\ \text{divide both sides by 32.43} \\ \frac{32.43x}{32.43}\leq\frac{259.44}{32.43} \\ x\leq8 \end{gathered}

Therefore, the solution to the inequality is;

x\leq8

6 0
1 year ago
It took Cedric 42 minutes to jog 12 laps. At this rate how many minutes did it take to jog each lap
Y_Kistochka [10]
3.5 each Lap. I am sure of it
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3 years ago
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Find the quotient. 28,134 ÷ 47
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Answer:

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Step-by-step explanation:

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