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3 years ago

14

the country recreation department cleared a 3/4 mile long walking trail in Washington park. if the trail will be marked every 1/

12 mile with a small sign, how many signs are needed?

1 answer:

Fiesta28 [93]3 years ago

4 0

The answer is 9 signs. 9 signs r needed

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After sales tax, a $600 antique clock costs $642. What is the sales tax percentage?

LenKa [72]

well, clearly the tax is the added 42 bucks, so hmmm if we take 600 to be the 100%, how much is 42 off of it in percentage?

$\begin{array}{ccll} amount&\%\\ \cline{1-2} 600 & 100\\ 42& x \end{array} \implies \cfrac{600}{42}=\cfrac{100}{x}\implies \cfrac{100}{7}=\cfrac{100}{x} \\\\\\ 100x=700\implies x=\cfrac{700}{100}\implies x=7$

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2 years ago

Read 2 more answers

Amelia randomly selects two cards, with replacement, from a normal deck of cards. Calculate the probability that: the first card

Lena [83]

Answer:

1 / 2704

Step-by-step explanation:

Number of cards in a deck = 52

9 of clubs in a deck = 1

10 of clubs in a deck = 1

Probability = required outcome / Total possible outcomes

P(9 of club) = 1 / 52

With replacement ;

Then ;

P(10 of club) = 1 / 52

Hence,

P(9 of club, then 10 of club) = 1/52 * 1/52 = 1 / 2704

3 0

3 years ago

What numbers lie between 42 square root

salantis [7]

Answer:

√ 42 lies between 6 and 7

Step-by-step explanation:

We know that √ 42 will lie between √ 36 and √ 49

And √ 36 = 6 ; √ 49 = 7

Hence we can be sure that √ 42 lies between 6 and 7

3 0

2 years ago

A specific park is rectangular-shaped and has a 3 mile-perimeter. The length is 4 times the width. What are the dimensions of th

avanturin [10]

Answer:

The length of the rectangular park is $1.2\ mi$ and the width of the rectangular park is $0.3\ mi$

Step-by-step explanation:

Let

x ----> the length of the rectangular park

y ---> the width of the rectangular park

we know that

The perimeter is equal to

$P=2(x+y)$

$P=3\ mi$

so

$3=2(x+y)$ -----> equation A

$x=4y$ ----> equation B

substitute equation B in equation A and solve for y

$3=2(4y+y)$

$3=10y$

$y=0.3\ mi$

Find the value of x

$x=4(0.3)=1.2\ mi$

therefore

The length of the rectangular park is $1.2\ mi$ and the width of the rectangular park is $0.3\ mi$

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2 years ago

Trayvon has a mug shaped like a hemisphere. Its diameter is 18 cm. To the nearest hundredth, what is the capacity of her mug?

xeze [42]

Answer:

1527cm3

Step-by-step explanation:

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2 years ago