What is 15/8 as a mixed number

Answers

Answer 1

Answer: 1 and 7/8 is the answer

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A "Local" train leaves a station and runs at an average rate of 35 mph. An hour and a half later an "Express" train leaves the station and travels at an average rate of 56 mph on a parallel track. How many hours after the Express train starts will the it overtake the Local?
Write the equation of the line that has the indicated slope and y-intercept.Slope = 5; y-intercept = 9
Find 2 consecutive odd numbers given that difference between their resiprocal is 2/63

30000 divided by 0.01

Answers

the answer would be 3,000,000

3,000,000 is the answer

What is the y value of the y-intercept of the line that contains the points (-8,-5) and (10,67)?

Answers

(67)-(-5)<br />-------------= 72/18<br />(10)-(-8) reduce down 72/18=4

Shirts-2-Go sells t-shirts for a base price of $12 per shirt plus a fixed fee of $3 shipping and handling for the whole order. Shirts PLUS sells t-shirts for a base price of $8 per shirt plus a fixed fee of $23 shipping and handling for the whole order. Let x represent the number of shirts ordered and let y represent the total cost of the order.y = 12x + 3

y = 8x + 23

How many shirts would you have to purchase for the total cost to be the same at both companies?

Answers

Answer:

5 shirts

Step-by-step explanation:

Y=12x+3 equation 1

y=8x+23 equation 2

12x+3=8x+23 substituting y value will cause equations to equal

4x=20

x=5 shirts

check answer

y=12x+3

y=12(5)+3

y=60+3

y=63

y=8x+23

y=8(5)+23

y=40+23

y=63

The design of a digital box camera maximizes the volume while keeping the sum of the dimensions at 6 inches. If the length must be 1.5 time the height, what should each dimension be?

Answers

$v=1.5l*l*w$
$w=6-l-1.5l$
$v=1.5l*l*(6-l-1.5l)$
which simplifies to
$v=9l^2-3.75l^3$
and so we take the derivative of that function in terms of l
$(d)/(dx)v=18l-11.25l^2$
then we set that to 0
$-11.25l^2+18l=0$
using the quadratic formula
$(-b+or- √(b^2-4ac))/(2a)$
$(-18+or- √(18^2-4*11.25*0))/(2*-11.25)$
simplifying..
$(-18+or- √(324))/(-22.5)$
$(-18+√(324))/(-22.5)=0$
$(-18-√(324))/(-22.5)=1.6$

at this point i noticed an error, i used l instead of h... but thats ok

pluggin 0 and 1.6 for h, lets check answers
1.6: h=1.6 l=2.4 w=2
0: h=0 l=0 w=6

so the answer is h=1.6 l=2.4 w=2, which gives the greatest volume of 7.68

What is the elapsed time between 11:50 a.m. and 4:05 p.m.?4 hours and 45 minutes
15 hours and 15 minutes
5 hours and 15 minutes
4 hours and 15 minutes

Answers

If you would like to find the elapsed time between 11:50 a.m. and 4:05 p.m., you can calculate this using the following steps:

12:00 p.m. - 11:50 a.m. = 0:10
12:00 p.m. + 4:05 p.m. = 4:05

0:10 + 4:05 = 4:15 = 4 hours and 15 minutes

The correct result would be 4 hours and 15 minutes.

Answer:

4 hours and 15 minutes

Step-by-step explanation:

Which of the following are characteristics of the correlation coefficient? Check all that apply.

A. It must be between -1 and 1.
B. It must be positive.
C. It indicates the percentage of points that lie on the regression line.
D. The correlation coefficient tells you how strong the residuals are.
E. If correlation is positive, the slope of the regression line is also positive

Answers

This is about knowledge between Correlation and Regression.

Option A and E are correct.

Correlation Coefficient is the statistical relationship that exists between two variables. Let us look at the options;

Option A; Under different types of correlation coefficient they tend to make use of different range for their definitions but it is always between minimum of -1 and maximum of 1. Thus, the statement is correct.

Option B; It must not be positive because as stated in option A above negative values can be used.

Option C; No, it doesn't indicate percentage of points because in the definition i gave earlier, there is nothing like that. Besides, this is in regression and not correlation.

Option D; This is incorrect as the definition doesn't support it.

Option E; This is correct because positive correlation means that the two variables increase at the same time or decrease at the same time. Thus, it means the regression line will be positive as long as correlation is positive.

Read more at; brainly.com/question/10502086

A. It must be between -1 and 1
E. If correlation is positive, the slope of the regression line is also positive.

Other Questions

If you put $1205.00 in an account that earns 2.5% simple interest. Find the total amount in the account after four years.

QUESTION 23 Determine if the given solution is correct. If it is not, find the solution. Is -5 the solution to x+6=5-4? no; x=7 yes no; x=3 no; x=15

A = v/t. Solve for t

1. Evaluate (101.5)? - (100.5)