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3 years ago

11

Jared surfed for 1/3 of the 9 hours he was at the beach. he spent the rest of the time building a castle. how many hours did he

spent building the castle?

1 answer:

Archy [21]3 years ago

8 0

He spent 6hrs at the beach

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Identify all the linear pairs in the example below.

Alenkasestr [34]

Step-by-step explanation:

<4 and <5

<4 and <1

The angles in both the pairs are adjacent to each other and make 180° together

5 0

2 years ago

454 rounded to the nearest ten

Bezzdna [24]

Hey!

454 rounded to the nearest ten is: 450

This is because 4 is less than five, which is why we would round it to 50.

3 0

2 years ago

Read 2 more answers

After 3 minutes, a submarine had descended to −320 feet. After 8 minutes, the submarine had descended to −420 feet. Assuming a l

Alenkasestr [34]

Answer:

d(t) = -20t -260

Step-by-step explanation:

We are given two points ...

(t, d) = (3, -320) and (8, -420)

The 2-point form of the equation of a line can be useful when 2 points are given.

y = (y2 -y1)/(x2 -x1)(x -x1) +y1

Substituting the given points, we have ...

d(t) = (-420 -(-320))/(8 -3)(t -3) -320

d(t) = -20(t -3) -320

d(t) = -20t -260

5 0

3 years ago

Susan drove her car at a constant speed for 3 hours and went 174 miles.

m_a_m_a [10]

I’m not sure what the answer is

6 0

2 years ago

A backyard pool has a concrete walkway around it that is 3 feet wide on all sides. The total area of the pool and the walkway is

Sloan [31]

Answer:

$x \approx 21.080\,ft$ , $y = 29.080\,ft$

Step-by-step explanation:

The total area of the pool and the walkway is:

$(x + 6\,ft)\cdot (y + 6\,ft) = 950\,ft^{2}$

$(x + 6\,ft)\cdot (x + 14\,ft) = 950\,ft^{2}$

$x^{2} + 20\cdot x + 84\,ft^{2} = 950\,ft^{2}$

$x^{2} + 20\cdot x - 866\,ft^{2} = 0$

The roots of the second-order polynomial is:

$x_{1} \approx 21.080\,ft$ and $x_{2} \approx -41.081\,ft$

The only possible root is:

$x \approx 21.080\,ft$

The other dimension of the pool is:

$y = x + 8\,ft$

$y = 21.080\,ft + 8\,ft$

$y = 29.080\,ft$

3 0

3 years ago