Ask question

Ask question

All categories

tino4ka555 [31]

3 years ago

14

Dean downloaded 9 apps onto his tablet in 12 seconds. At this rate, how many apps could he download in one minute?(12 seconds =1

minute)

1 answer:

Maurinko [17]3 years ago

6 0

Answer:

45 apps

Step-by-step explanation:

1 minute has 60 seconds

If 12 seconds equals to 9 apps

60 seconds equals to x apps

Cross multiplying

$x=\frac {60\times 9}{12}=45 apps$

Therefore, Dean downloads 45 apps in 1 minute

You might be interested in

A normal distribution has a mean of 101 and a standard deviation of 3.4. What is the z-score of 105? Enter your answer, rounded

oee [108]

Answer:

Z-score = 1.18

Step-by-step explanation:

The z-score measures how many standard deviations from the mean a data is

Therefore the z score is the quotient between the difference between a value and the mean and the standard deviation

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

Where

μ is the mean, x is a data of the population and $\sigma$ is the standard deviation

In this case

$\mu =101\\\\\sigma = 3.4\\\\X = 105$

Then the z-score is

$Z = \frac{105-101}{3.4}\\\\Z = 1.18$

4 0

4 years ago

A sledgehammer weighs 18 pounds on Earth and 4 pounds on the planet Namar. Which of the following proportions could you use to d

julia-pushkina [17]

18/4 = 100/w
4/18 = w/100

both A and B

5 0

4 years ago

Which of the following is most likely the next step in the series?

REY [17]

Answer:

D

Step-by-step explanation:

blue and next line

7 0

3 years ago

7000 litres of water is pumped out of a tank in 42 minutes. How many litres could be pumped out in one hour at the same rate?

viktelen [127]

Answer:

8600 litre×235 will be there in the tanks

7 0

3 years ago

please explain the steps that are used to solve this??? Given:2(10 -13x)+9=-34x+60 Step 1:20-26x=-34x+60 Step 2:-26x=-34x+40 Ste

solmaris [256]

You left out the 9 in the whole equation. The 1st step you had right you just forgot to put +9. 2nd step you are combining the like terms and get 11-26x=-34x+40. Step 3: you are trying to isolate the x on one of the sides. You need to switch the 11 over to the 40 and get 29. Move -34x over to -26x and get 8x. Step 4 all you are doing in dividing 8 from both sides and get 5.

4 0

3 years ago