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2 years ago

11. A scuba diver's elevation changed by -12 3/4 feet every minute. This was

Mathematics

1 answer:

Andrei [34K]2 years ago

7 0

Answer:

-8 1/2 ft / min

Step-by-step explanation:

X = second diver rate

1 1/2 X = -12 3/4

3/2 X = - 51/4

X = - 51/4 * 2/3 = - 102/12 = -8 1/2 ft / min

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Slope point form passing through (4,-7) with x intercept = -4

r-ruslan [8.4K]

Answer:

We start with this equation:

If x intercept is -4 then y = 0 giving us another point (-4, 0)

(4, -7) and (-4, 0)

slope = y difference / x difference = (-7 -0) / (4 --4) =

-7 / 8

Step-by-step explanation:

8 0

4 years ago

Work out 1/2 x 7 giving your answer as a mixed number

irga5000 [103]

Answer:

$4\frac{1}{2}$

Step-by-step explanation:

This question is basically saying: what is half of 7, or what is 7 divided by 2?

Based on this, it can be written both of the ways as:

»» $\frac{1}{2}$ of 7 OR 7 ÷ 2

So, just solve using either one and you’ll get 4.5 or $4\frac{1}{2}$ . But since the question wants the answer to be a mixed number, then choose $4\frac{1}{2}$ .

Hope this helps! :)

7 0

3 years ago

David is making a wall out of bricks. Each brick is 2/3 foot long. There are 20 bricks lined up end to end to make the wall. Wha

Law Incorporation [45]

The total length of wall is 160 inches

Solution:

Given that,

$Length\ of\ each\ brick = \frac{2}{3}\ foot$

1 feet = 12 inches

Therefore,

$Length\ of\ each\ brick = \frac{2}{3} \times 12\ inches = 8\ inches$

There are 20 bricks lined up end to end to make the wall

To find: Total length of wall in inches

$Total\ length\ of\ wall = \text{length of each brick } \times \text{ total number of bricks}$

Thus we get,

$Total\ length\ of\ wall = 8 \times 20\\\\Total\ length\ of\ wall = 160\ inches$

Thus total length of wall is 160 inches

8 0

3 years ago

the diagonal of a rectangle is 16 inches. if the height of the rectangle is 8 inches. what is the length of the rectangle?

Yakvenalex [24]

Answer:

Length: 13.9 inches

Step-by-step explanation:

a^2 + b^2 = c^2

a = 8 and c= 16

8^2 + b^2 = 16^2

64 + b^2 = 256

b^2 = 256 - 64

b = sqrt 192

b = 13.9

4 0

3 years ago

Solve the system. {y=5/6x+1 {−x+y=2

astraxan [27]

You can substitute the value of y(5/6 x + 1) from the first equation for y in the second and get $-x + ( \frac{5}{6} x+1) = 2
$ which becomes $- \frac{1}{6} x + 1 -1=2-1
$ and you get

3 0

4 years ago

Read 2 more answers