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3 years ago

The quotient of a number and 3 less than twice the number

1 answer:

6 0

"The quotient of a number and 3 less than twice the number" would translate to the expression x/(2x-3)

Basically we have x up top the fraction and 2x-3 in the bottom denominator of the fraction. The slash / means divide

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A spherical ball has a diameter of 8 inches. The ball has a slow leak in which the air escapes at the rate of 2.5 inches per sec

s344n2d4d5 [400]

Answer:

107.2 seconds

Step-by-step explanation:

Step one:

given

the diameter of ball 8 inches

radius= 8/2 = 4 in

The volume of the ball

$v=4/3 \pi r^3$

$v= 4/3*3.142*4^3\\\\v= 4/3*3.142*64\\\\v= 804.35/3\\\\v=268.12 in^3$

Step two:

we know that

rate= quantity/time

rate= 2.4 in per second

quantity= 268.12

time=?

time= quantity/rate

time= 268.12/2.5

time= 107.2 seconds

4 0

2 years ago

If stratified random sampling with proportional allocation is used to select a sample of 25 high schools, how many would be sel

gregori [183]

Answer:

02 High Schools would be selected from the stratum with a percent-free-lunch value of 40 less than or equals x.

Step-by-step explanation:

As the sample size needed is 25 and total schools are 100 so this indicate 1 school in each 4 schools is to be selected. This is given as

$n=\frac{n_{total}}{n_{sample}}\\n=\frac{100}{25}\\n=4$

Now as the schools with percent free lunch are 8 so now

$n=\frac{n_{total}}{n_{sample}}\\n=\frac{8}{2}\\n=2$

So only 2 schools will be selected in this regard.

7 0

3 years ago

In Miami the number of highway accidents increased by 20% over a four year period. How many accidents were there in 2013 if ther

wariber [46]

X/5120=20/100
x/5120=1/5
5120/5=1024
1024+5120=6144
6144 is the answer.

9 0

3 years ago

Of the employees who work at stalling printing 90% attened the safety procedures meeting. If 63 employees attended the meeting h

My name is Ann [436]

90% of what is 63....

0.90x = 63
x = 63 / 0.90
x = 70....so 70 ppl work at stalling printing

6 0

3 years ago

Ami bought some gardening tools. She paid $15 for a rake, $18 for a garden hose, and $47 for a wheelbarrow. What percent of the

trapecia [35]

19 percent.

15/80 = <span>18.75, rounded is 19.</span>

8 0

3 years ago