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Serga [27]
3 years ago
11

A truck driver has to make a delivery at a location that is 230.2 miles away. She drives an average of 55 miles each hour for 3.

25 hours. If the truck driver continues at the same speed, will she make it to the location in the next hour?
and how many does she or he have to go
Mathematics
2 answers:
GREYUIT [131]3 years ago
6 0

Answer:

Yes

Step-by-step explanation:

Since the truck driver is going at an average speed of 55 miles per hour and has already driven for 3.25 hours that means she has already covered a distance of ...

55 * 3.25 = 178.75 miles

If she continues at the same speed and travels for one more hour that means that she would cover another 55 miles which would put her at a total distance of ...

178.75 + 55 = 233.75 miles

Therefore, the answer would be Yes she would arrive at her location. ;)

Vlad [161]3 years ago
5 0

Answer:

The driver will make it to the location in the next hour

Step-by-step explanation:

First, find how many miles they traveled in 3.25 hours, by multiplying 55 by 3.25:

55(3.25)

= 178.75

Then, add 55 to this to see if the driver will make it in the next hour:

178.75 + 55

= 233.75

Since this is greater than 230.2, this means they will make it to the location.

So, the driver will make it to the location in the next hour.

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Earth's radius is approximately 6400 km. What is the surface area & volume of the earth?
Tamiku [17]

Answer:

SA=514,457,600\ km^{2}

V=1,097,509,546,667\ km^{3}

Step-by-step explanation:

step 1

Find the surface area

we know that

the surface area of a sphere is equal to

SA=4\pi r^{2}

substitute

SA=4 \pi (6,400)^{2}

SA=163,840,000 \pi\ km^{2}

substitute the approximate value of pi (3.14)

SA=(3.14) (163,840,000)

SA=514,457,600\ km^{2}

step 2

Find the volume

The volume is equal to

V=(4/3)\pi r^{3}

substitute

V=(4/3)(3.14) (6,400)^{3}

V=1,097,509,546,667\ km^{3}

8 0
3 years ago
Read 2 more answers
The sum of four times a number and five times another number is -28. The sum of nine times the first number and two times the se
dedylja [7]

Answer:

  -8

Step-by-step explanation:

If we let x and y represent the first and second numbers, respectively, we can write the problem statement as the equations ...

  • 4x +5y = -28
  • 9x +2y = 11

We can multiply the first equation by -9 and add 4 times the second equation to get an equation in y alone:

  -9(4x +5y) +4(9x +2y) = -9(-28) +4(11)

  -37y = 296 . . . . . simplify

  296/-37 = y = -8 . . . . . divide by the coefficient of y

The second number is -8.

7 0
3 years ago
45(1.08)30 what is the answer
Anika [276]
<span>45 x (1.08) x </span>30 = 1458

-----------------------------------------------
7 0
3 years ago
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Find principal of a loan at 11% for 5 years with $426.25 simple interest
Ahat [919]

Answer:

P=775

Step-by-step explanation:

The Simple Interest Equation is A = P(1 + rt)

where

A = Total Accrued Amount (principal + interest)

P = Principal Amount

I = Interest Amount

t = Time Period involved in months or years

In this case, we do not know the values ​​of the equation (A and P), but we know the amount of interest accrued

If we define our principal whit this formula, we are able to know the rest of the values:

A-P= interest

clearing

A=interest+P

replacing

426.25 + P = P (1+(0.11(5))

Solving

426.25+P=1.55P

P-1.55P=-426.25

-0.55P=-426.65

P=\frac{-426.25}{-0.55}

P=775

7 0
3 years ago
What is the square root of four hundred fifty six
4vir4ik [10]

Answer:

21.3541565041

Step-by-step explanation:

You can look it up online to easily find it. Thats how i found this answer.

Hope this helps!

6 0
2 years ago
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