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Lady_Fox [76]
3 years ago
9

 A police car drives 230 km in 2 1/2 hours. What is its average speed in kilometers per hour?​

Mathematics
1 answer:
harina [27]3 years ago
8 0

Answer:

92 km/h

Step-by-step explanation:

You might be interested in
Plz help asap thank youuu
wariber [46]

Answer:

1. y = 0, b/a

2. y =  0, a/b

3. y =0, c/b

4. y =0, c/a

Step-by-step explanation:

The slope formula for y = mx + b which is known as standard form is Ax + By ≥ C

slope = A/B

x-intercept = C/A

y-intercept = C/B

and now we are dueling with y, so we will use y-intercept

1. cx + ay = b

where c is x, a = y and b=c

Y-int = C/B

y = 0, b/a

2. cx + by = a

y =  0, a/b

3. ax + by = c

y =0, c/b

4. bx+ ay = c

y =0, c/a

Hope this helps

7 0
3 years ago
5. Thickness measurements of ancient prehistoric Native American pot shards discovered in a Hopi village are approximately norma
Triss [41]

Answer:

percent (%) of ancient prehistoric thinner than 3 is 0.0013

Step-by-step explanation:

Given data

mean =  5.1 millimeters (mm)

standard deviation = 0.7 mm

to find out

percent (%) of ancient prehistoric thinner than 3

solution

we have given mean and SD

so Z will be = x -mean  / SD

Z = ( x - 5.1 ) / 0.7

so P( x < 3 ) = P ( (x - 5.1 ) / 0.7  <  ( 3 - 5.1 ) / 0.7 )

P( Z  = ( 3 - 5.1 ) / 1.5 )

P( Z  =  -3 ) = 0.0013

percent (%) of ancient prehistoric thinner than 3 is 0.0013

4 0
3 years ago
Please help on this one?
rodikova [14]

Answer:

\large\boxed{A.\ \dfrac{4}{x-9}}

Step-by-step explanation:

\dfrac{4(x-2)}{(x-2)(x-9)}\\\\\text{canceled}\ (x-2)\\\\=\dfrac{4}{x-9}

4 0
3 years ago
in a test correct answer are given positive numbers and for incorrect negative numbers jack scored in successive rounds were-65,
eimsori [14]

Answer:

<em>Jack scored a total of -40</em>

Step-by-step explanation:

<u>Arithmetic</u>

Jack took a test where the correct answers are given as positive numbers and the incorrect answers are negative numbers.

The scores were

-65,-10,-15,20,30

The total score is the arithmetic sum of all scores, including their signs:

Total score: -65-10-15+20+30

Total score: -40

Jack scored a total of -40

4 0
3 years ago
Plzz help me im am stuck
Pachacha [2.7K]
I hope this helps you!

7 0
3 years ago
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