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Romashka [77]
2 years ago
9

A car driving on a straight path travels about 260 feet in 3 seconds. Rounded to the nearest second, approximately how many seco

nds will it take for the car to travel 1 mile at the same rate? 1 mile = 5,280 feet

Mathematics
2 answers:
Natali [406]2 years ago
8 0
1 mile = 5,280 feet

Let s = seconds we must find

260/5,280 = 3/s

See picture.

myrzilka [38]2 years ago
3 0
Hello!

Let's write this as a proportion below.

\frac{feet}{seconds} = \frac{260}{3} =  \frac{5,280}{s}

Now we cross multiply and divide to find x.

s= \frac{5,280(3)}{260} = \frac{15840}{260} ≈ 61

Therefore,the car takes about 61 seconds for the car to drive a mile.

I hope this helps!
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Krya wants to solve the equation x/10+8=5 what steps should she use on both sides of the equation
maria [59]
Multiplied by 10
x+80=50
x=-30
7 0
3 years ago
The table show the age in years of employees in a company
adelina 88 [10]

Answer:

A. 24 ≤ a < 26.

B. 22.5

Step-by-step explanation:

A. Determination of the modal class interval.

Mode is the class with the highest frequency.

From the table given above, the highest frequency is 8, therefore the class will the highest frequency is:

24 ≤ a < 26.

B. To obtain the mean, we must determine the class mark. This is illustrated below:

Class >>>>> class mark >>> frequency

18 – 19 >>>> 18.5 >>>>>>>>> 3

20 – 21 >>> 20.5 >>>>>>>> 2

22 – 23 >>> 22.5 >>>>>>>> 7

24 – 25 >>> 24.5 >>>>>>>> 8

26 >>>>>>>> 26 >>>>>>>>> 0

The mean is given by the summation of the product of the class mark and frequency divided by the total frequency. This is illustrated below:

Mean = [(18.5x3) + (20.5x2) + (22.5x7) + (24.5x8) + (26x0)] / (3+2+7+8+0)

Mean = (55.5 + 41 + 157.5 + 196 + 0)/20

Mean = 450/20

Mean = 22.5

Therefore, the mean age is 22.5

4 0
2 years ago
Read 2 more answers
What is 9.39 to one decimal place
mafiozo [28]
9.4 because the number after the firs decimal point is higher than 5
5 0
3 years ago
In a small town, there are 4 times as many left-handed males as there are left-handed females, and there are 3 times as many rig
horrorfan [7]

Answer:

  (b)  24

Step-by-step explanation:

The given variable definitions and the given relationships let us write these statements:

  LH males = 4 × LH females = 4x

  RH females = 3 × RH males = 3y

  LH males + RH males = 204 = 4x +y

  RH females + LH females = 348 = 3y +x

Your favorite method of solving equations of this sort can tell you ...

  (x, y) = (24, 108)

There are 24 left-handed females.

__

<em>Additional comment</em>

Other numbers involved here are ...

  y = 108 . . . . right-handed males

  204-108 = 96 . . . . left-handed males (=4×24)

  348-24 = 324 . . . . right-handed females (=3×108)

__

If you want to solve the equations by hand, you can use substitution for y to get an equation in x:

  3(204 -4x) +x = 348   ⇒   -11x = -264   ⇒   x = 24

3 0
2 years ago
Can someone give me work for the estimate
pogonyaev
If a rational number after dot "like 5.52") is smaller than 5(half) , then you assume the first number before that dot stuff :p
For example:

-》11,2 =11
-》 4.19= 4
-》2,2 = 2
etc

But if it's bigger than 5 or equals 5 , u assume the first number before that dot stuff +1
For example :
-》5.5 =6
-》3.9=4
-》225.7= 226
etcetc

so the answer is:;;

5.52 --》 52 is bigger than a half (50) so ur gonna assume like 6

1,6 --》(it equals with 1.60 too)
6 is bigger than 5 so ur gonna assume 2

6÷2 =3

Hope it helps! :))
#MissionExam001

7 0
3 years ago
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