14. The time required to complete a job varies
inversely as the number of people working.
It takes 4 hours for 7 electricians to wire a
building. How long would it take 3
electricians to do the job?
A. 1 hr 43 min
C. 7 hr 30 min
B. 5 hr 15 min
D. 9 hr 20 min
inn

Answers

Answer 1

Answer: D is right

Step-by-step explanation:     time is 4 hours when there are 7 electricians.

You multiply 4·7 = 28

Then there are 3 electricians who need x hours.

You solve  3x = 28   x ) 28/3 = 9,33  hours, also 9 h 20 min


Related Questions

Marking brainliest

Someone use this as a sentence, and pls don’t use outside sources.

Answers

Answer:

yo lol

Step-by-step explanation: meow

A store donated 4 ½ dozen cookies for a fundraiser. Another store donated 3 ¼ dozen cookies. How many dozen cookies did they donate altogether?

Answers

Answer:

the number of dozen cookies donated altogether is [tex]7\frac{3}{4}[/tex]

Step-by-step explanation:

Given that

The store donated 4 1 ÷ 2 dozen cookies

And, the another store donated 3 1 ÷ 4 dozen cookies

we need to find oyt the no of dozen cookies donated altogether is

[tex]= 4 \frac{1}{2} + 3 \frac{1}{4} \\\\= \frac{9}{2} + \frac{13}{4} \\\\= \frac{18 + 13}{4} \\\\= \frac{31}{4}\\\\= 7\frac{3}{4}[/tex]

Hence, the number of dozen cookies donated altogether is [tex]7\frac{3}{4}[/tex]

Heather, Jim, and Felipe served a total of 90 orders Monday at the school cafeteria. Felipe served 3 times as many orders as Heather. Jim served 5 more orders than Heather. How many orders did they each serve?

Answers

Answer:

Heather served 10 orders.

Felipe served 30 orders.

Jim served 50 orders.

What we know:

Let's refer to each person by their first initial (H, J, & F)

H + J + F = 90

F = 3 * H

J = 5 * H

Substitution:

Let's replace F and J by their equivalents in relation to H (basically making the entire left side only H)

H + (5 * H) + (3 * H) = 90

H + (5H) + (3H) = 90

9H = 90

H = 90/9

H = 10

Final Calculations

Now that we know how many orders Heather served, we can calculate how many Jim and Felipe served

F = 3 * H

F = 3 * 10

F = 30

J = 5 * H

J = 5 * 10

J = 50

Harper is ordering a sandwich from a deli. There are 9 types of meat to choose from and 7
cheeses, and Harper must pick one of each. How many different sandwiches can Harper
order?
___sandwiches

Answers

Answer:

63

Step-by-step explanation:

9*7=63

Hope this helped! :)

Find the value of the ratio.
Need help, please - and also need explanation.

Answers

Answer:

Step-by-step explanation:

Simplify a+a+a+a+a+a

Answers

Answer:

a+a+a+a+a+a= 6a

Step-by-step explanation:

brainliest???

The volume of a cylinder is
4,224.8 cubic millimeters, it has a
diameter of 16.4 mm, find the
height of the cylinder

Answers

Answer:

90424.05

Step-by-step explanation:

1st step is to find the equation = h = v/pie*r^2

2nd step put the value = h = 4,224.8/pie*16.4/2^2

in the formula diameter is half the radius so 16.4/2 = 8.2

Express 8√3 as the square root of a positive integer.

Answers

The answer is sqrt(192).

hii i’ll give brainliest please help thanks :)

Answers

B hope that helps:))

number 4, it would help this is a final

Answers

-1,3 and 1.5 or something

What is the area of the rectangle?
A 1
3 square meter
B 1
6 square meter
C 1
6 1 square meters
D 1
3 1 square meters
1
2
2
3

Answers

Where is the rectangle

Neighbor A can put up three 8 foot sections of wood fencing in two hours.
Neighbor B can put up 15 feet of chain link fencing each hour.
Neighbor C can put up 1 yard of vinyl fencing in half an hour.

Which neighbor's fencing project will take the least amount of time to complete?
Which neighbor's fencing project will take the most amount of time to complete?


Neighbor A can put up three 8 foot sections of wood fencing in two hours.
Neighbor B can put up 15 feet of chain link fencing each hour.
Neighbor C can put up 1 yard of vinyl fencing in half an hour.

Which neighbor's fencing project will take the least amount of time to complete?

Which neighbor's fencing project will take the most amount of time to complete?

Answers

Answer:

most is neighbor b

Step-by-step explanation:

1 yard is 3 feet

Answer:

Which neighbor's fencing project will take the least amount of time to complete?  Neighbor B

Which neighbor's fencing project will take the most amount of time to complete?  Neighbor C

What two numbers add to 12 and multiply to 35

Answers

5 and 7
5 + 7 = 12
5 x 7 = 35

Answer:

7, 5

Step-by-step explanation:

The numbers are 7 and 5

When we add 7 with 5 = 7 + 5 = 12

When we multiply 7 with 5 = 7 x 5 = 35

A zoo charges a rental fee plus $2 per hour for strollers.the total cost of 5 hours is $13. Assume the relationship is linear find and interpret the rate of change and initial value
A=rate of change is $5/hr and the intial value or rental fee is $13
B=rate of change is $13/hr and the initial value or rental fee is $5
C= Rate of change is $3/hr and the intial value or rental fee is $2
D=rate of change is $2/hr and the intial value or rental fee is $3
How do I show work

Answers

Answer:

D

Step-by-step explanation:

WILL GIVE BRAILIEST IF SOME ONE HELLLPPPPSSSSS

Answers

Answer:

1/5 to the 18 power or

2.62144 x 10 to the -13 power.

Or just simply 5 to the -18 power

Step-by-step explanation:

What is the perimeter of a quadrilateral with vertices at (1,5), (6,5),
(1,11), and (6,11)? Enter the answer in the box.

Answers

Answer:

Step-by-step explanation:

What is the perimeter of a quadrilateral with vertices at (1,5), (6,5),

(1,11), and (6,11)? Enter the answer in the box.

Answer:

22 is the answer I just took the test

substitute for x+2y=12 and x=y-12

PLEASE HELP !

Answers

Answer:

x = -4, y = 8

Step-by-step explanation:

y - 12 + 2y = 12

=> 3y = 24

=> y = 8

x = 8 - 12

=> x = -4

Answer:

x = -4

y = 8

Step-by-step explanation:

We can substitute:

=> (y - 12) + 2y = 12

=> 3y - 12 = 12

=> 3y = 12 + 12

=> 3y = 24

=> y = 24/3

=> y = 8

Now we can substitute 8 in for y, in any of the equation given to find x:

=> x = (8) - 12

=> x = -4

Hope this helps!

Top brainlist question
what is the size of angle QSR?​

Answers

Answer:

2x = 140  x = 70

Step-by-step explanation:

If you add the other 2 angles together, you get 150. Subtract 150 from 360 to get 210. Divide that by 3 and you get 70. Because QRS is 2 times the size of PQR, it is equal to 140.

Hope that this helps!

Explanation:

The sum of the interior angles of a quadrilateral is 360°.

x + 2x + 80 + 70 = 360

3x + 150 = 360

3x = 210

or

x = 70°

Therefore

angle Q = 70°

angle R = 2x = 140°

Ayo can someone help with this I dont get it​

Answers

Answer:

i know for a fact that it is yes and i am almost postitive it is b but i would wait until someone else answers it

Step-by-step explanation:

Find the trig ratio. Reduce to
lowest terms.
6
А
8
[?]
COS A =

Answers

COS A=0.8

Step-by-step explanation:

2^6+8^2

100

sqrt(100)=10

8/10

0.8

Answer:
cos is 4/5
tan is 3/4
and sin is 3/5

Simplify the expression below.
(8^2)^6


A.
812
B.
84
C.
88
D.
83

Answers

Answer:

A.  8^12.

Step-by-step explanation:

(8^2)^6

= 8^)2*6)

= 8^12.

i believe it’s a. 812


1. A sphere has a diameter of 12
centimeters. What is the volume of the
sphere?
A 72 cm
C 200 cm
B 144 cm
D 288,7 cm

Answers

Answer:

Volume of the sphere = 902 cm³ (Approx.)

Step-by-step explanation:

Given:

Diameter of circle = 12 centimeter

Find:

Volume of the sphere

Computation:

Radius of circle = Diameter of circle / 2

Radius of circle = 12 / 2

Radius of circle = 6 centimeter

Volume of the sphere = [4/3]πr³

Volume of the sphere = [4/3][22/7][6]³

Volume of the sphere = [4/3][22/7][216]

Volume of the sphere = [1.33][3.14][216]

Volume of the sphere = [216][4.1762]

Volume of the sphere = 902.05

Volume of the sphere = 902 cm³ (Approx.)

what is the answer to x^2-6x-16=0

Answers

Answer:

x=8

x=-2

Step-by-step explanation:

jimmy reads an article with 9,720 words in 45 minutes. about how many words does he read per minute?​

Answers

Answer:

About 216 words per minute.

Step-by-step explanation:


ANSWER:
216
EXPLANATION:
9,720 / 45 = 216

find the value of x in the figure





Answers

Answer:

70degrees

Step-by-step explanation:

Using the theorem;

Angle at the vertex is the half of the difference of the angles at its intercepted arcs

Angle at the vertex = 24 degrees

difference of the angles at its intercepted arcs = 118 - x

According to the theorem;

24 = 1/2(118 - x)

Cross multiply

24 * 2 = 118 - x

48 = 118 - x

x = 118 - 48

x = 70degrees

Hence the value of x is 70degrees

If your put the link you like and sell child p***. Yes, Someone told me the truth. These links track your data and steal information where they sell you to sex trafficking. So if you put that link, that’s what your trying to do. Can I please have help with #10 please.

Answers

Answer: -3x+1 and y column will have the same answers because y = -3x+1

-3x+1

-3(-2)+1 = 6+1 = 7

-3(-1)+1 = 3+1 = 4

-3(0)+1 = 0+1 = 1

-3(1)+1 = -3+1 = -2

-3(2)+1 = -6+1 = -5

(x, y)

(-2, 7)

(-1, 4)

(0, 1)

(1, -2)

(2, -5)

Constant rate of change

Linear graph

Negative slope

Slope = -3

A circle has a diameter of 14 ft. What is its circumference?
Use 3.14 for it, and do not round your answer. Be sure to include the correct unit in your answer.

Answers

Answer:

circumference = pi x diameter

14x3.14 = 43.96 ft^2

Hope that answers your question

Step-by-step explanation:

PLZZ HELP WITH THIS FI ITS EASY FOR YOU LOL HELPPP WITH THIS

Answers

Answer:

1. Rhombus

2. Square

3. Rectangle

4. Quadrilateral

5. Parellelogram

6. Trapezoid

7. Rhombus

8. Rectangle

9. Rhombus

Answer:

Step-by-step explanation:

1. Rhombus

2. Square

3. Rectangle

4. Kite (?)

5. Parallelogram

6. Trapezoid

7. Rhombus (?)

8. Rectangle

9. Rhombus

PLEASE HELP ASAP!! CORRECT ANSWER ONLY PLEASE!!!

How much would be earned on a $425 deposit earning 3% simple interest for 2 years?

A. $12.75

B. $25.50

C. $25.88

D. $38.25

Answers

Answer:

B

Step-by-step explanation:

I=prt

I=$425*2*3/100

I=25.5

Find the slope of: (12,-2) and (4, -6).

Answers

Answer:

Slope is 1/2

Step-by-step explanation:

Brainliest please!

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