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SOVA2 [1]
2 years ago
6

HEEEEEEEEEEEEEEEEEEELP

Mathematics
2 answers:
Lena [83]2 years ago
7 0

Answer:

2 miles per hour

Step-by-step explanation:

To find her walking pace in 'miles per hour' we need to divide the distance (in miles) by the time (in hours).

Speed = Distance/ Time

The time is given in minutes , but 50 minutes = 50/60 hours

=5/6 hours

1 2/3 ÷ 5/6

=5/3 × 6/5 miles per hour

Now cut it

= 2 miles per hour

Sever21 [200]2 years ago
4 0

Answer:

<h2><u>2 miles per hour</u></h2>

Step-by-step explanation:

Speed = Distance / Time

If we measure distance in miles and time in hour, we will get the speed in miles per hour.

Distance = 1 + 2/3 miles, which expressed as an improper fraction is 5/3 miles.

Time = 50 minutes which expressed in hours will be 50/60 or 5/6 hours.

(You can also see that 10 minutes is 1/6 of an hour, hence 50 minutes is 5/6 of an hour)

Speed = Distance / Time

         = (5/3) / (5/6)

We know that dividing by "a/b" is same as multiplying by "b/a"

Hence, we have:

Speed = (5/3) * (6/5)

         = (5 * 6) / (3 * 5)

         = 30 / 15

         = 2

Mara walks at a speed of 2 miles per hour

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Step-by-step explanation:

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5 0
3 years ago
Human visual inspection of solder joints on printed circuit boards can be very subjective. Part of the problem stems from the nu
olga_2 [115]

Answer:

a

The probability that the selected joint was judged to be defective by neither of the two inspectors is   P(A' n B' ) = 0.8855

b

The probability that the selected joint was judged to be defective by inspector B but not by inspector A  is  P(A' n B) =0.0403

Step-by-step explanation:

From the question we are told that

   The sample size is n_s =  10000

    The number of outcome for inspector A is  n__{A}} = 742

    The number of outcome for inspector B is  n__{B}} = 745

     The number of joints judged defective by both inspector is n(A u B) =  1145

The the probability that the selected joint was judged to be defective by neither of the two inspectors is mathematically represented as

      P(A' n B' ) =  1 - P(A u B)

Now

       P(A\ u \ B) = \frac{n(Au B)}{n_s }

substituting values

        P(A\ u \ B) = \frac{1145}{ 10 000 }

So  

      P(A' n B' ) =  1 - \frac{1145}{10 000}

     P(A' n B' ) = 0.8855

the probability that the selected joint was judged to be defective by inspector B but not by inspector A  is mathematically represented as

     P(A' n B) =  P(A \ u \ B) -P(A)

Now

        P(A) =  \frac{n__{A}}{n_s}

substituting values

       P(A) =  \frac{742}{10 000}

So

     P(A' n B) =   \frac{1145}{10 000}  - \frac{742}{10 000}

    P(A' n B) =0.0403

7 0
3 years ago
How much dextrose is contained within 200mL of D5W?
Mumz [18]

Answer:

10 grams in 200ml because for 100ml is 5 grams

Step-by-step explanation:

4 0
2 years ago
Solve this please with an explanation of process your finding the values of x and y
SpyIntel [72]

Congruent sides, so isosceles triangle.  When we have an isosceles triangle the bisector of angle A is a perpendicular bisector of BC with foot D.   So x=ADB=90 degrees.

Angle B is 47 degrees and angle y=BAD is complementary, the other acute angle in a right triangle.

y = 90 - 47 = 43

Answer: x=90, y=43

4 0
3 years ago
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