In the next 3 hours, the crew was digging at a rate of -2.5 feet each hour. During the last 2 hours, the crew slowed to a rate of -2.25 feet each hour. What number would they record for the location after the 8 hours?

Answers

Answer 1

Answer: To calculate the location after 8 hours of digging at different rates, you can sum up the distances they dug during each time period.

In the first 3 hours, they dug at a rate of -2.5 feet per hour, so they dug a total of:
3 hours * (-2.5 feet/hour) = -7.5 feet

In the next 2 hours, they dug at a rate of -2.25 feet per hour, so they dug a total of:
2 hours * (-2.25 feet/hour) = -4.5 feet

Now, add these two distances together to find their location after 8 hours:
-7.5 feet + (-4.5 feet) = -12 feet

So, they would record a location of -12 feet after 8 hours of digging.

Related Questions

Use elimination to solve this system of equations. 2r + 3s= 9 and 3r + 2s= 12

Answers

2r + 3s= 9 <=> -6r -9s = -27;
3r + 2s= 12 <=> 6r + 4s = 24;
=> 0*r -5*s = -3 => s = 3/5;

2*r + 3*(3/5) = 9<=> 10*r + 9 = 45 <=> 10*r = 36 => r = 18/5;

Answer:

(18/5,3/5)

Step-by-step explanation:

PLEASE HELP I WILL GIVE BRAINLIEST TO SAMPLE RESPONSE OR BEST ANSWER!The equation that represents the canned goods order is
24x + 4y = 384, where x = number of minutes spent
producing fruit cans, and y = number of minutes
producing vegetable cans.
If the vegetable assembly line runs for 3 minutes, how
many minutes would the fruit assembly line need to run to
complete the order of 384 cans? Explain

Answers

Answer:

8 minutes.

Step-by-step explanation:

24x + 64y = 384, that represents the canned goods order .

where x = number of minutes spent producing fruit cans,

and y = number of minutes producing vegetable cans.

If the vegetable assembly line runs for 3 minutes, then put y=3 in equation we get

Therefore, the fruit assembly line need to run to complete the order of 384 cans in 18 minutes.

Answer:

Substitute 3 into the equation for y. Solve for x and find that x = 8. So if cans of vegetables are processed for 3 minutes, fruit needs to be processed for 8 minutes to complete the 384-can order.

Step-by-step explanation:

Choose the slope and y-intercept that correspond with the graph.Answers are:
Slope:-1/3, y-intercept -1
Slope:3, y-intercept-1
Slope:1/3,y-intercept -1
Slope:-3,y-intercept -1

Answers

You can immediately read off the y-intercept; it is (0, -1).

To find the slope:

-3 - 0
m = ---------- = -1/3
9

What adds to 12 but multiplies to 9

Answers

The numbers are irrational, so they can't be written exactly.
Rounded to the nearest thousandth, they are

11.196
and
0.804 .

11.196 + 0.804 = 12
11.196 x 0.804 = 9.002...

3x3=9 3+9=12 if thats what youre asking

What is the value of the element at h21? H= [6, 52, -4]
[15, 9, 75]
[-1, 23, 2]

Answers

Answer:

Thus, value of $h_(21)=15$

Step-by-step explanation:

$H=\left[\begin{array}{ccc}6&52&-4\n15&9&75\n-1&23&2\end{array}\right]$

Here, $h_(pq)$ represents position of element of matrix h represented by p row and q column.

So, $h_(21)$ represents position of element of matrix h represented by 2 row and 1 column.

Thus, value of $h_(21)=15$

hrc
r=row
c=collumn

so go the 2nd row
(15,9,75)
and go to the 1st collumn
15

the value is 15

Does anyone know how to do factoring? n^2-15n+56

Answers

first, find 2 numbers that multiply to 56 and add to -15 (-8,-7)
therefore, the factored version is (n-7) (n-8)
:)

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