All categories

3 years ago

Can someone pls help me <33

Mathematics

1 answer:

guajiro [1.7K]3 years ago

6 0

9514 1404 393

Answer:

(a) 29/69

Step-by-step explanation:

It can help to be familiar with divisibility rules. Even numbers are divisible by 2, so the fraction 174/414 can immediately be reduced to 87/207.

Both numbers have a digit total that is divisible by 3, so each of these numbers can further be divided by 3, reducing the fraction to 29/69. The number 29 is prime, so this fraction cannot be reduced further.

The reduced fraction is ...

made shots/attempts = 174/414 = 29/69

Additional comment

As is often the case, a calculator can help you identify arithmetic expressions that have the same value (are equivalent).

174/414 ≈ 0.42028986

29/69 ≈ 0.42028986 . . . . same value

87/207 ≈ 0.42028986 . . . . same value, but 29/69 is reduced

17/41 ≈ 0.41453415 . . . . . not equivalent

14/46 ≈ 0.30434783 . . . .not equivalent (and not reduced; both numbers are even)

You might be interested in

A custom pair of shoes costs $225. This is 3 times the cost of a regular pair of shoes . What is the cost of a regular pair of s

mixer [17]

Answer:

$75

Step-by-step explanation:

if 255 is three times a normal pair of shoes than you divide 255 by three cause it is inverse operations

hope it helps!

6 0

3 years ago

Read 2 more answers

How many people in a car? A study of rush-hour traffic in San Francisco counts the number of people in each car entering a freew

emmasim [6.3K]

Answer:

a) No. It is not normal.

b) The probability that 700 randomly selected cars at this freeway entrance will carry more than 1075 people is 0.104

Step-by-step explanation:

(a) Could the exact distribution of the count be Normal?

The exact distribution of the number of people in each car entering a freeway at a suburban interchange is not normal. Because the count is discrete and can assume values bigger or equal to one.

(b) The probability that 700 randomly selected cars at this freeway entrance will carry more than 1075 people.

The probability we seek is the cars carrying people with mean more than $\frac{1075}{700}=1.5357$

That is P(z>z*) where z* is the z-score of 1.5357.

z* can be calculated using the equation:

z*= $\frac{X-M}{\frac{s}{\sqrt{N} } }$ where

X is the mean value wee seek for its z-score (1.5357)

M is the average count of people entering a freeway at a suburban interchange. (1.5)

s is the standard deviation of the count (0.75)

N is the sample size (700)

Thus z*= $\frac{1.5357-1.5}{\frac{0.75}{\sqrt{700} } }$ ≈ 1.26

We have P(z>1.26)=1-P(z≤1.26)= 1-0.896 = 0.104

5 0

3 years ago

Help with number 14 please :))

Degger [83]

Answer:

b = - 5

Step-by-step explanation:

(k + a )(k + x) + 1 = k^2 + kx + ak + ax + 1

I think the way to solve this is to worry about the 36

k^s + 1 + ak should equal 36

We know that a = 2

k^2 + 1 + 2k = 36

k^2 + 2k + 1 - 36 = 0

k^2 + 2k - 35 = 0

(k + 7)(k - 5) = 0

k = -7 is the only acceptable answer. It is given that K < 0.

bx = kx + ax

b = k + a

b = - 7 + 2

b = - 5

3 0

3 years ago

The measurement of a central angle is 0=240. Find the measurement of 0 in radians.

scoundrel [369]

180⁰ ------ π
240⁰ ------ x

x=(240*π)/180 = (4/3)π

Answer is C.

7 0

3 years ago

Michelle buys a motorcycle for $10,000. The motorcycle loses 20% of its value each year. The depreciation of the motorcycle is s

Zina [86]

The answer is b 2 years

4 0

4 years ago

Read 2 more answers

Can someone pls help me <33​

Can someone pls help me <33