answer.
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
hammer [34]
1 year ago
12

A train is traveling at a constant speed and has traveled 67.5 miles in the last 1 1/2 hours. Which equation shows the proportio

nal relationship between the distance, d, and the time, t, that the train has traveled?
1. d = 67.5t
2. d = 45t
3. d = 50t
4. d = 69t
Mathematics
1 answer:
marishachu [46]1 year ago
8 0

Answer:

The answer is B, d=45t

Step-by-step explanation:

i just did it and got it correct

hope it helps and good luck :)

You might be interested in
$0.60 bottle of iced tea marked up to $1.35
Masja [62]
The answer is 0.81 since you have to (x) 0.60x 1.35=0.81 Than you divide 0.81÷0.60
6 0
2 years ago
Read 2 more answers
A superintendent of schools wonders if scores on a test of science achievement differ for female and male 8th grade students. To
lina2011 [118]

Answer:

b. 2-independent sample t-test

Correct for this case is the best test since the result from each group are independent and we can compare the sample means between th two groups

Step-by-step explanation:

For this case the intention is try to test if scores on a test of science achievement differ for female and male 8th grade students. let's analyze the possible options for this case:

a. 2-dependent sample t-test

False is not possible since the nature of the gender is not possible to conclude tha the results from boys and girls are dependent

b. 2-independent sample t-test

Correct for this case is the best test since the result from each group are independent and we can compare the sample means between the two groups

c. Correlation

False we can't compare the means of interest with a correlation coefficient since that's not the purpose of the study

d. 2-way ANOVA

False we have just one variable between two groups so is not possible to apply a 2 way ANOVA

5 0
2 years ago
The spinner shown has eight equal-sized sections. The pointer lands on an even number 135 times out of 250 spins. Which of the f
forsale [732]

Answer:

A and D

Step-by-step explanation:

Here, we shall be evaluating the validity of the statements;

A. Yes, A is true

There are four even numbers 2,4,6 and 8 and 4 odd number 1,3,5,7; The landing should be equal at 125 each

B. This is wrong

It is supposed to land half of the number of time s which is half of 250 and that is 125

C.This is wrong

The numbers greater than 4 are 5,6,7,8

Now, the probability should be 4/8 = 1/2 and that is 50%

D. This is correct

Number of times we have a landing on odd numbers is 250-135 = 115

The experimental probability of landing on an odd number is thus 115/250 = 0.46 which is 46%

8 0
2 years ago
Mrs. Start's class paid $5.60 for 4 5 yd of lace for an art project. Later, the class decided to buy another 7 3 4 yd of the sam
Damm [24]
The answer to your question, is 54.25.
3 0
1 year ago
Workers at a particular mining site receive an average of 35 days paid vacation, which is lower than the national average. The m
SVETLANKA909090 [29]

Answer:

B

Step-by-step explanation:

The average of paid time off is the sum of the paid time off (T) of each employee divided by the number of employees(n):

av = (∑T)/n

Thus, av is directly proportional to the sum of T and indirectly proportional to n. It means that if T raises, the average raises too. So, the manager must fire the employees who have the least number of days off, so T will increase.

4 0
1 year ago
Other questions:
  • a machine factory produces 2 parts per second. one shift is 10 hours long. what is the production rate, in parts per shift? ente
    14·2 answers
  • A satellite makes 4 revolutions of the earth in one day. How many revolutions would it make in 6 1/2 days?
    14·1 answer
  • Which polynomial correctly combines the like terms and expresses the given polynomial in standard form?
    6·2 answers
  • A certain organization recommends the use of passwords with the following​ format: vowel commavowel, consonant comma consonant c
    5·1 answer
  • What is the smallest positive prime factor of 2017^2019 +2019^2017​
    15·2 answers
  • The value of a rare painting has increased each year since it was found at a garage sale. The value of the painting is modeled b
    5·1 answer
  • Assume that China has about 1 billion people, an increase of 15 million would result in a relative change of ___%
    7·1 answer
  • Which expression is equivalent to the following complex fraction?
    14·2 answers
  • In triangle ABC, AB = 8.9 m, Angle BAC = 90° and Angle ABC = 56°. H lies on BC such that AH
    11·1 answer
  • Given ΔACD and ΔABE, what is AB?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!