All categories

3 years ago

Which procedure can be used to solve the equation 540=12z, and what is the solution?

Mathematics

2 answers:

anzhelika [568]3 years ago

4 0

To solve 540 = 12z you have to use inverse operation by dividing both sides by 12 to get 45 = z

hodyreva [135]3 years ago

4 0

540 = 12z

the process that would be used most often would be division.

540 = 12z....divide both sides by 12
540/12 = z
45 = z <==

although, another procedure could also be used....multiplication..
540 = 12z...multiply both sides by 1/12
540(1/12) = z
540 /12 = z
45 = z <==

You might be interested in

For a school fundraiser 10 students sold a total of 90 boxes of cookies which can be calculated from this information

zvonat [6]

Answer:

90 ÷ 10 = 9 boxes per student

Step-by-step explanation:

90 ÷ 10 = 9 boxes per student

4 0

3 years ago

According to a study conducted by the Gallup Organization, the the proportion of Americans who are afraid to fly is 0.10. A rand

notsponge [240]

Answer: 0.1457

Step-by-step explanation:

Let p be the population proportion.

Given: The proportion of Americans who are afraid to fly is 0.10.

i.e. p= 0.10

Sample size : n= 1100

Sample proportion of Americans who are afraid to fly = $\hat{p}=\dfrac{121}{1100}=0.11$

We assume that the population is normally distributed

Now, the probability that the sample proportion is more than 0.11:

$P(\hat{p}>0.11)=P(\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}>\dfrac{0.11-0.10}{\sqrt{\dfrac{0.10(0.90)}{1100}}})\\\\=P(z>\dfrac{0.01}{0.0090453})\ \ \ [\because z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}} ]\\\\=P(z>1.1055)\\\\=1-P(z\leq1.055)\\\\=1-0.8543=0.1457\ \ \ [\text{using z-table}]$

Hence, the probability that the sample proportion is more than 0.11 = 0.1457

3 0

3 years ago

it takes allison ten minutes to fill a dozen water balloons she wants to calculate how long it will take her to fill all the wat

nadezda [96]

Well you need an equation because how many friends were at the party? x*12x10=w thats your equation or however you want to put it. the letters are your variables

4 0

2 years ago

Read 2 more answers

4log x-1/2log y+3log z

babymother [125]

Following rules of logs, we can do the following:

log x^4 - log y^(1/2) + log z^3

Combine the first and 3rd factors to get log [x^4*z^3]

Seeing that the neg. sign signifies division, write this new term - log y^(1/2) as a quotient:

[x^4*z^3]
log ----------------
y^(1/2)

Next time, please include the instructions when you present your problem.
Thx.

7 0

2 years ago

Given the triangle below, what is the measure of x to the nearest foot?

luda_lava [24]

Answer:

18 ft

Step-by-step explanation:

Since the triangle is right angled ; we could use trigonometry ;

Using the angle , 40° ; adjacent side, = 14 feets ; hypotenus = x

Cos θ = Adjacent / hypotenus

Cos 40 = 14 / x

0.7660444 = 14 / x

0.7660444x = 14

x = 14 / 0.7660444

x = 18.27

= 18 ( nearest foot)

8 0

2 years ago