Comprei 15 rolos para uma instalação elétrica gastei 3/8 de 1 rolo quantos trabalhos eu posso realizar com o material comprado?

Answers

Answer 1

Responder:

40 instalações

Explicação passo a passo:

Rolos totais de instalações adquiridas = 15

Rolos usados ​​por instalação = 3/8 de um rolo

O número de instalações que os 15 rolos podem durar pode ser calculado assim:

1 instalação = 3/8 rolo

x instalações = 15 rolos

Multiplicação cruzada

3/8 x = 15

x = 15 ÷ 3/8

x = 15 * 8/3

x = 5 * 8

x = 40


Related Questions

find the component form of -u-v given that u = -2,3 and v= 2, -4

Answers

Answer:

0,-1

Step-by-step explanation:

Please answer asap with explanation

Answers

Answer:

x^2 = 44y

It's really hard to explain

but if the directrix is y then your problem will have X^2= if it was x then the problem would have y^2=

then you have to have the y on the other side of the equation

and you want to multiply the 11 by 4. always multiply by 4.

this is a good video to understand it go to You.Tube and type

Learn to graph a horizontal parabola & identify the focus & directrix

Amanda's age is one-half of Sally's.

Which variable expression represents Amanda's age?

s + 2

12+s

s2

2s
Plz help will give brainilist

Answers

Answer:

2s or s2

Step-by-step explanation:

2s and s2 are the same but it's one of them. I hope this helps!

Can somebody help me with this pleaseee!!! Help will be very appreciated And may you explain why it’s a lie .

Answers

Answer:

my mother say it is B. she is good at math

Answer: A

Step-by-step explanation:

Answer A is a lie. The most obvious reason being the other two statements can be proven because the y intercept of the exponential IS (0, 1). Secondly, the point (-2, 4) CAN be found on the graph. Option A is the lie because if you look, for x = 10, y = 0. Therefore, the statement that for very large values of x the exponential has very large values of y, is a lie.

Factorise fully
-X – 10

Pls help

Answers

Answer:

-X – 10=-1(x+10) is your answer

The librarian continues to record the type of item that the next 20 patrons check out from the library. patron item type 11 fiction book 12 non-fiction book 13 fiction book 14 fiction book 15 fiction book 16 non-fiction book 17 fiction book 18 non-fiction book 19 fiction book 20 DVD 21 fiction book 22 non-fiction book 23 fiction book 24 fiction book 25 audiobook 26 fiction book 27 DVD 28 non-fiction book 29 fiction book 30 DVD Based on the information from these patrons, estimate the probability that the next patron will check out a fiction book.

Answers

Answer:

[tex]Pr = 0.55[/tex]

Step-by-step explanation:

Given

Represent the dataset with the following frequency table

[tex]\begin{array}{cc}{Item} & {Frequency} & {Fiction\ Book} &{11} & {Non\ Fiction\ Book} & {5} & {DVD} & {3} & {Audiobook} & {1} \ \end{array}[/tex]

Required

Probability that the next checkout will be fiction

From the above frequency table, we have:

[tex]Fiction\ Book = 11[/tex]

[tex]n =20[/tex] --- total

So, the probability that the next checkout item is a fiction book is:

[tex]Pr = \frac{Fiction\ Book}{n}[/tex]

[tex]Pr = \frac{11}{20}[/tex]

[tex]Pr = 0.55[/tex]

(this is 12 year old math)​

Answers

Answer:

orange

6

9

14

yellow

6

Step-by-step explanation:

Find the area of the shape below

Answers

Answer:

I got 58, I hope the picture helped

find the value of x. 49° x°

Answers

Answer:

x = 41

Step-by-step explanation:

All triangle angles add up to 180 so:

x + 90 + 49 = 180

x + 139 = 180

x = 180 - 139

x = 41

PLEASEEEEEEEEEEEEE SAVE MEEEEEEEEEEEEEEEEEEEEEEEEE

Answers

Answer:

I think the answer is not proportional for B I'm sorry if it is wrong

Step-by-step explanation:

Answer:

a) not directly proportional

b) yes, k = -3/8

Find the radius r of the circle. Round your answer to the nearest tenth.

Answers

Answer:

1.1 yd

Step-by-step explanation:

120 × π/180 = 2π/3

2.3 = r × 2π/3

=> r = 2.3 ÷ 2π/3

=> r ≈ 1.1

The required measure of the radius is given as 1.1 yd.

What is a circle?

The circle is the locus of a point whose distance from a fixed point is constant i.e center (h, k). The equation of the circle is given by

(x - h)² + (y - k)² = r²

Where h, k is the coordinate of the center of the circle on the coordinate plane and r is the radius of the circle.

Here,
Angle = arc/radius,

Substitute the value in the above equation,
120 = 2.3 / radius,
radius = 2.3 / 120 × 180 / π
radius = 2.3 / 12 × 18 / 3.14
radius =  1.1 yd

Thus, the required measure of the radius is given as 1.1 yd.

Learn more about circle here:

brainly.com/question/11833983

#SPJ2

What is the surface area of the cylinder shown below? Use 3.14 for π. A. 660 cm2 B. 863 cm2 C. 353.25 cm2 D. 785 cm2

Answers

Answer:

602.88cm²

Step-by-step explanation:

Find the image of the cylinder attached

Surface area of a cylinder = A=2πrh+2πr²

r is the radius = 4cm

Height h = 20cm

Substitute

A = 2πr(r+h)

A = 2π(4)(4+20)

A = 8π(24)

A = 192π

A = 192(3.14)

A = 602.88cm²

Hence the surface area of the cylinder is 602.88cm²

no links
Suppose that the probability that your
mail is delivered before 2 pm is .90.
What is the probability that your
mail
will be delivered before 2 pm for two
consecutive days? Give your answer as
a decimal.

Answers

Answer:

The probability is 0.81

Step-by-step explanation:

The probability we want to find here is that;

the mail was delivered before 2 pm the first day and also delivered before 2 pm the next day

what we have to do here is to

multiply together, the probability in the two cases (for both days)

So we have this as:

0.9 * 0.9 = 0.81

Answer:

.81

Step-by-step explanation:

A company prints 22,875 tickets for a stadium. The tickets are placed into groups of 125. How many groups of tickets are made?

Answers

22,875 divided by 125= 183
There are 183 groups

How many zero dimensional objects are labeled on the object shown above?

Answers

Answer:

5

Step-by-step explanation:

0-dimensional objects are points

80 POINTS !!!!! PLEASE HELP.
There is a triangle with sides measuring 301, 30in and 25. Is this a nighttrange? Why or why not?

Answers

Answer:

No

Step-by-step explanation:

Assume you are asking if 30 in, 30 in, 25 in triangle if right.

Since two longer sides are equal this can't be a right triangle. Remember the hypotenuse is the longest side and the right triangle can be isosceles if shorter sides are of same size.

Check through Pythagorean theorem

H²=P²+B²301²=30²+25²

No it's false

It's not right angled

Solve this simultaneous equation 4 + 3 = 11 5 + 2 = 12

Answers

Answer: 6+1=13

Step by step:
4+3 and 5+2 equals 7. And 4 increases by 1 while 3 decreases by 1. The answer also increases by 1 each time.

HELP!!!!

What is the total surface area of the figure?


Answers

Answer:

200cm

Step-by-step explanation:

PLS ANSWER I WILL MAKE YOU BRAINLIEST


A surveyor is standing 118 feet from the base of the Washington Monument. The surveyor measures the angle of elevation from the ground to the top of the monument to be 78°.
Find the height h of the Washington Monument to the nearest foot.

Answers

Answer:

555.1 ft

Step-by-step explanation:

If you want to eat a lot of bear, what's the cheapest way
to get your fix? Use the prices below.
A package of 352 mini bears costs $6.99.
A package of 587 regular bears costs $8.88.
One Super-bear costs $29.99.

Answers

Answer:

fghf

Step-by-step explanation:

Ms. Brockman wants to take her class on a trip to either the nature center or the zoo. The nature center charges $4 per student, plus $95 for a 1-hour naturalist program. The zoo charges $6 per student plus $75 for a 1-hour guided tour. Find the number of students where the two field trips would have the same cost.

Answers

10 student would be the answer

How does self-reflection affect how you learn? Does it make you pay attention to the way you learn? Does it help you focus on overall concepts? Does it give you information about what you need to study? Explain your answer.

Answers

Answer:Self-reflection can help you recognise the progress you made in a lesson, whilst simultaneously allowing you to consider improvements that you could make. We learn by experiences and mistakes. ... Self-reflection enables you to move from just experiencing, into understanding

Step-by-step explanation:bECAUSE IM SMARTTTT

A coin is flipped 10 times. Based on theoretical probability, how many times will it likely result in heads?
3 out of 10 B. 4 out of 10 C. 5 out of 10 D. 6 out of 10

Answers

Answer:

answer: C. 5 out of 10

Step-by-step explanation:

Theoretical probability is what is expected to happen sense a coin has 2 sides theres a 1/2 chance at getting heads so 5 out of 10 is the theoretical probability because 5 is half of 10 hope this helps!

Brainliest goes to whoever answers correctly try to show work ONLY if you can

Answers

non linear bc it’s not a straight line and it’s a function bc x isn’t repeated

what does 45=-3x tell me

Answers

Answer:  x = -15

Hope this helps :)

Answer:

x = -15

Step-by-step explanation:

[One step multiplication problem]

When solving a one-step multiplication problem the easiest thing to do would be to divide the 'answer' (in this case, 45) by the coefficient (in this case, -3). A negative number times a negative number is a positive number, so x would be a negative number. 45 divided by -3 is -15.

So, x = 15.

Hope this helped!! <3

a standard number cube is tossed. find the following probability. P(less than 3 or even)

Answers

Answer:

half

Step-by-step explanation:

Simplify (4-3i)+(2+6i)

Answers

Answer:

6+3i

Step-by-step explanation:

4+2=6

-3i+6i=3i

6+3i

Answer:

6+3i

Step-by-step explanation:

just got it right besties

Simplify the following fractions to their lowest possible form using the Greatest Common Factor

Answers

Answer:

13) 3/6 = 1/2

14) 4/8 = 1/2

15) 6/30 = 1/5

Step-by-step explanation:

GCF OF 3/6 = 3, SO 3/6 = 1/2

GCF OF 4/8 = 4, SO 4/8 = 1/2

GCF OF 6, 30 = 6, SO 6/30 = 1/5

Hope that helps! :)

-Aphrodite

help please it’s easy I think :^

Answers

Answer:

F i think

Step-by-step explanation:

What percent is 25/75?

Answers

Answer:

33.33%

Step-by-step explanation:

Answer:

33.3333%

explaination

When we are using percentages, what we are really saying is that the percentage is a fraction of 100. "Percent" means per hundred, and so 50% is the same as saying 50/100 or 5/10 in fraction form. Now we can see that our fraction is 33.333333333333/100, which means that 25/75 as a percentage is 33.3333%

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