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
GrogVix [38]
3 years ago
14

Sara and Gordon win some money and share it in the ratio 2:1. Sara gets £28 more than Gordon. How much did they get altogether?

Mathematics
1 answer:
Zinaida [17]3 years ago
8 0

Answer:

84

Step-by-step explanation:

You might be interested in
Find the equation of the line shown. y 4 3 2 1 Х -2 -3 4​
MakcuM [25]

Answer:

y = 1/2x + 0.5

or

y = 1/2x + 1/2

Step-by-step explanation:

y = mx + b

b is y-intercept:

when x = 0, y = 0.5 (when the line cross the vertical (y) axis of the graph)

the point is (0, 0.5) so b = 0.5

m is slope:

slope = rise / run

rise = 1

run = 2

for every 2 x values, y increase by 1

slope (m) = 1/2

8 0
2 years ago
ANYONE HELP PLS THIS IS HARD PLSSS
juin [17]

Answer:

90% sure it's the third option

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What’s the answer????
hodyreva [135]

Answer:

g

Step-by-step explanation:

42 cups in to pints is 21 so g

3 0
3 years ago
A food distributor is being sued for racial discrimination because 12% of newly hired candidates are not white when 53% of all a
Musya8 [376]

Answer:

Check Explanation

Step-by-step explanation:

A) The null hypothesis would be that the proportion of newly hired candidates that are not white is not significantly different from the proportion of the applicants that are not white & there is no significant evidence that the company's hiring practices are discriminatory.

Mathematically,

H₀: μ₀ = 0.53

And the alternative hypothesis would be that there is a significant difference between the proportion of newly hired candidates that are not white is not significantly different from the proportion of the applicants that are not white. More specifically, that the proportion of newly hired candidates that are not white is significantly less than the proportion of applicants that are not white & there is significant evidence that the company's hiring practices are indeed discriminatory.

Mathematically,

Hₐ: μ₀ < 0.53

B) The two errors that can come up in this hypothesis testing include -

Type I error: We reject the null hypothesis because we obtain that the proportion of newly hired candidates that are not white is significantly less than the proportion of applicants that are not white and conclude that there is indeed significant evidence that the company's hiring practices are discriminatory when in reality, there is no significant difference and hence, no discrimination.

Type II error: We accept the null hypothesis (fail to reject the null hypothesis) because we obtained that there is no significant difference between the proportion of newly hired candidates that are not white & th proportion of applicants that are not white and conclude that there is no discrimination in the company's hiring practices when in reality, there is significant difference in the stated proportions above and significant evidence that there is indeed significant evidence that the company's hiring practices are discriminatory.

C) The power of the test increases as the significance level reduces. This is because t-statistic increases as significance level reduces.

D) The standard error of the mean used in computing the t-score is given as

σₓ = (σ/√n)

It is evident that as the value of n increases, the standard error reduces and this widens the effect of the test, hence, the power of the test increases.

Hope this Helps!!!

7 0
3 years ago
Evaluate the Expression z(z-7) when z=10
Alchen [17]

Answer:

30

Step-by-step explanation:

z(z-7)

Let z= 10

10(10-7)

Parentheses first

10 (3)

Multiply

30

3 0
3 years ago
Read 2 more answers
Other questions:
  • The diagonal of the rectangle is 13 inches, and the side lengths of the triangles are Pythagorean triples. To the nearest tenth,
    6·1 answer
  • Mrs. diaz is thinking of buying an annual pass to Disneyland.
    12·2 answers
  • A rectangular swimming pool is 6 ft deep. One side of the pool is 4.5 times longer than the other. The amount of water needed to
    10·2 answers
  • If the distance from your house to the basketball game is 110 miles and you travel 50 miles per hour, how many hours would it ta
    12·1 answer
  • Find the​ (a) mean,​ (b) median,​ (c) mode, and​ (d) midrange for the data and then​ (e) answer the given question. Listed below
    9·1 answer
  • Moira's chili recipe makes 12 servings and uses 12 green peppers and 4 red peppers. Drag green peppers and red peppers into the
    12·1 answer
  • What is the length of the base of a right triangle with an area of 24 square meters and a height of 4 meters? 3 m 6 m 12 m 96 m
    14·1 answer
  • Jason bought 7 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are n
    7·2 answers
  • For a data set of the pulse rates for a sample of adult females, the lowest pulse rate is 33 beats per minute, the mean of the l
    9·1 answer
  • Select all ordered pairs that are solutions of y=3x−1.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!