All categories

3 years ago

Please help me with this question.

Mathematics

1 answer:

Reil [10]3 years ago

4 0

Answer:

13.5 m/s

Step-by-step explanation:

To start off, simply plug in the values into the equation. This is shown below...

v = velocity

u = initial velocity

a = acceleration

t = time

v = u + at ---> v = 3 + 1.5(7)

First, multiply 1.5 and 7 together. By doing so, you get 10.5. Now the equation is...

v = 3 + 10.5

To finish, simply add 3 and 10.5...

v = 3 + 10.5 ---> v = 13.5

Your answer is 13.5 m/s

You might be interested in

Nora and Eli are making homemade spring

yawa3891 [41]

Answer:

eli

Step-by-step explanation:

3 0

3 years ago

There are premium tickets costing $99 each and rest are regualr tickets costing $25 each. A pile of 120 tickets have a total val

polet [3.4K]

Answer:

There are 38 premium tickets and 82 regular tickets in a pile.

Step-by-step explanation:

Given,

Total number of tickets = 120

Total amount = $5812

Solution,

Let the number of premium tickets be x.

And the number of regular tickets be y.

Total number of tickets is the sum of total number of premium tickets and total number of regular tickets.

So the equation can be written as;

$x+y=120\ \ \ \ \ equation\ 1$

Again,total amount is the sum of total number of premium tickets multiplied by cost of each premium ticket and total number of regular tickets multiplied by cost of each regular ticket.

So the equation can be written as;

$99x+25y=5812\ \ \ \ equation\ 2$

Now We will multiply equation 1 by 25 we get;

$x+y=120\\25(x+y)=120\times25\\25x+25y= 3000 \ \ \ \ equation\ 3$

Now Subtracting equation 3 from equation 2 we get;

$(99x+25y)-(25x+25y)=5812-3000\\\\99x+25y-25x-25y=2812\\\\74x=2812\\\\x=\frac{2812}{74}=38$

We will now substitute the value of x in equation 1 we get;

$x+y=120\\38+y=120\\y=120-38\\y=82$

Hence There are 38 premium tickets and 82 regular tickets in a pile.

3 0

3 years ago

Hi today im going to be giving a -lot of point so if u dont get points dont worry cuz im going to be doing 5 times.

oksian1 [2.3K]

Answer:

EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Thanks So MUCH!!!

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Andrea is told that the means of two groups in a study were statistically significant. She knows the means and standard deviatio

salantis [7]

Answer:

Cohen's D

Step-by-step explanation:

Cohen's D is a statistic that measures effect size. It shows standardised difference between 2 means.

Effect size is defined as how large the effect of a something is or its magnitude.

Cohen's D works effectively when the sample is >50 (that is for large samples). However a correction factor can be used to make results from small samples more accurate

The formular for Cohen's D is:

D = (mean1 - mean2) ÷ (√({standard deviation1}^2 + {standard deviation 2}^2)/2)

This is the most appropriate method in the given scenario

5 0

3 years ago

Tacos are served in the cafeteria every 4th

andriy [413]

Answer:

On the 12th day

Step-by-step explanation:

12 is a multiple of both 4 and 6

7 0

3 years ago

Read 2 more answers