1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
max2010maxim [7]
2 years ago
14

A car travelled a distance of 50km in an hour.what distance did it travel in 30min at the same speed? ​

Mathematics
1 answer:
LUCKY_DIMON [66]2 years ago
6 0

Answer:

The car would have traveled 25 km.

Step-by-step explanation:

Set up the Proportion \frac{50}{60} = \frac{x}{30}. Solving that proportion gets you an answer of 25, getting you the answer 25 km in 30 minutes. I hope this helps! :)

You might be interested in
To which subset of real numbers does the following number belong? square root of 7
Kay [80]

The square root of 7 is an irrational number.


8 0
3 years ago
Read 2 more answers
Brooke and her friends buy a jumbo bag of Millicent's Mini Donuts at the fair. They sit at a
djyliett [7]

Answer:

d+13=4 is wrong it would be divede because it says put one in each napkin so it is being divided

Step-by-step explanation: 13/d

7 0
3 years ago
Three students were applying to the same graduate school. They came from schools with different grading systems. Student GPA Sch
stiv31 [10]

Answer:

Due to the higher Z-score, Kamala had the best GPA when compared to other students at her school.

Step-by-step explanation:

Z-score:

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

In this question:

Whichever student's GPA had the higher z-score had the best GPA compared to other students.

Thuy 2.5 3.2 0.8

This means that X = 2.5, \mu = 3.2, \sigma = 0.8

The z-score is:

Z = \frac{X - \mu}{\sigma}

Z = \frac{2.5 - 3.2}{0.8}

Z = -0.875

Vichet 88 75 20

This means that X = 88, \mu = 75, \sigma = 20

The z-score is:

Z = \frac{X - \mu}{\sigma}

Z = \frac{88 - 75}{20}

Z = 0.65

Kamala 8.9 8 0.4

This means that X = 8.9, \mu = 8, \sigma = 0.4

The z-score is:

Z = \frac{X - \mu}{\sigma}

Z = \frac{8.9 - 8}{0.4}

Z = 2.25

Due to the higher Z-score, Kamala had the best GPA when compared to other students at her school.

7 0
3 years ago
Simplify the expression: – 7 – 6 + – 9 a
Blababa [14]

Answer:

-13-9a

Step-by-step explanation:

3 0
3 years ago
If f(x) = x^2 - 4(x) + 6, find x if f(x) = 27
Elena L [17]

Answer:

x = - 3 or x = 7

Step-by-step explanation:

Given

f(x) = x² - 4x + 6

If f(x) = 27, then equating gives

x² - 4x + 6 = 27 ( subtract 27 from both sides )

x² - 4x - 21 = 0 ← in standard form

Consider the factors of the constant term ( - 21) which sum to give the coefficient of the x- term ( - 4)

The factors are - 7 and + 3, since

- 7 × 3 = - 21 and - 7 + 3 = - 4, hence

(x - 7)(x + 3) = 0

Equate each factor to zero and solve for x

x + 3 = 0 ⇒ x = - 3

x - 7 = 0 ⇒ x = 7

4 0
3 years ago
Other questions:
  • the value of a new automobile depreciates 15% during the first year, and 16% during the second year. What is its depreciated val
    6·1 answer
  • (TRIG) What is tan J? A. 7/24 B. 7/25 C. 24/25 D. 24/7
    13·1 answer
  • A basketball team is down by 2 points with only a few seconds remaining in the game. There is a 60% chance that the team will be
    12·1 answer
  • Write the point-stope form of the linear equation that passes through the point (2, - 3) and is perpendicular to 3x - y = 4 .
    11·1 answer
  • Is the Function exponential?
    12·1 answer
  • Can somebody please only answer this if u know the answer im very low on points thank you!
    7·1 answer
  • Find the area of the kite.
    14·2 answers
  • ANSWER ASAP FOR BRAINIEST AND 100 POINT ASAP<br> Find the value of x in the triangle.
    10·2 answers
  • A car travels at a speed of 25 miles per hour for t hours
    9·1 answer
  • Which set of integers is in the correct order, from Least to greatest?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!