An electrician needs 3 rolls of electrical wire to wire each room in a house. How many rooms can he wire with 3/4 of a roll of wire?

Answer:

He can wire

[tex] \frac{1}{4} [/tex]

of a room with 3/4 of a roll of wire.

Step-by-step explanation:

We can solve by using proportions.

Let's set it up.

[tex] \frac{3 \: rolls}{1 \: room} = \frac{ \frac{3}{4} \: of \: a \: roll}{x} [/tex]

We are now going to cross multiply. By cross-multiplting, you would get:

[tex] \frac{3}{4} = 3x[/tex]

You are now going to divide both numbers by 3 in order to get the x by itself.

[tex] \frac{ \frac{3}{4} }{3} = \frac{3x}{3} [/tex]

By dividing, you get:

[tex] \frac{1}{4} = x[/tex]

Therefore, the answer is 1/4.

The number of rooms he can wire with 3/4 of a roll of wire is 1/4.

Proportion, in general, is referred to as a part, share, or number considered in comparative relation to a whole. Proportion definition says that when two ratios are equivalent, they are in proportion. It is an equation or statement used to depict that two ratios or fractions are equal.

Given that, an electrician needs 3 rolls of electrical wire to wire each room in a house.

Let the number of rooms he can wire with 3/4 of a roll of wire be x.

Now, the proportion is

[tex]\frac{3}{1}=\frac{\frac{3}{4} }{x}[/tex]

3x=3/4

x=1/4

Therefor, number of rooms he can wire is 1/4.

To learn more about the proportions visit:

https://brainly.com/question/7096655.

#SPJ2

A fish tank contains 8 neon tetras and 12 guppies. What is the ratio of neon tetras to guppies?
A.1:5
B.2:3
C.3:2
D.2:5

must fill out whole sheet, and you don't have to explain, just the answer will be fine. 100 points + brainliest for best answer

What is the equation to find the circumference of a circle?

For everyone who answered, 6 divided by 3​

A pharmacist put 2.415 ounces of vitamin pills into bottles. She put 0.023 ounces of vitamin
pills into each bottle.
How many bottles did the pharmacist use for these vitamin pills?

(1) x + 4 > 8. If you need to solve for x, what's the first step?
(A) Subtract x from both sides. incorrect answer
(B) Subtract 4 from both sides. incorrect answer
(C) Subtract 8 from both sides. incorrect answer
(D) Add x to both sides.

Please help me I will give you the brain thing and extra points (image below) 2/5

Let a = 4 and b = 3. Select from the drop-down menu to create a true statement. 2ab+b2 ​ > 3a2– Choose... A. 2 B. 2b C. 4a D. 4b

Write the power of 10 to multiply the divisor by to make it a whole number. Then, write the equivalent problem and find the quotient.

16.65 divided by 0.37
i need halp wit this and also i brainly keeps deleting meh questions

Find the sale price. The original price of a remote control car is $70. The car is on sale for 20% off.

PLEASE HELP ME



Find the slope and y-intercept of the following graph.

help me. Please ;-;

i need 20 characters ;-;

The table and the graph below each show a different relationship between the same two variables, x and y.


How much more would the value of y be on the graph than its value in the table when x = 12?


- 20

- 90

- 150

- 180

Which symbol replaces the box to make the statement true? 18÷6+3□6+12÷3
A.
C. =

Give the domain and range of the relationship. Determine whether or not the relationship is a function.

Can someone please tell me how to measure the diameter of a circle? Im confused.

solve 2x +6 < 10 I WILL GIVE BRAINLIEST IF ANSWER IS CORRECT!!

PLEASE HELP WILL GIVE BRAINLEST EMERGENCY!

I need help with this ASAP!
Examine the picture below. What is your answer?

Explain how you determined your answer.

Help me, please. Please also explain to me why you picked your answer.

Please help me I will give you the brain thing and extra points (image below) 3/5

9. Evaluate the ceiling function for the given value.
A. f(x) = ⌈x⌉; x = −7.4

B. g(x) = ceiling (x, 0.50);
x = 21.27

HELP!!! WILL GIVE BRAINLIEST

Susan deposited $275 in a savings account that earns simple interest at a rate of 4.5%. She made no additional deposits and no withdrawals. When Susan closed the account, she had earned a total of $148.50 in interest. How long was the account open?

Jessica’s friend lent her $5. Later that day Jessica gave her friend back $1.75 Which rational number represents the overall change to the amount of money Jessica’s friend has?

A new seven – story apartment building is opening in our town. I was curious when I read the apartments on the higher floors were more expensive, so I went to the open house.

I discovered that there is only one very large apartment on the top floor. Each floor has twice as many apartments as the floor above it. The lowest floor contains only one-room studio apartments which are very small.

How many apartments are in this new building?

Find the generalized formula that would tell me how many apartments would be in this building if it had “X” stories?

What are the two ways you could write a constant of proportionality equation?

Student #4:

9 - 2x ≥ 4
-2x ≥ -5
x ≥
x ≥ 2


Solved the inequality incorrectly and graphed their solution incorrectly.
Solved the inequality correctly but graphed their solution incorrectly.
Solved the inequality incorrectly but graphed their solution correctly.
Solved the inequality correctly and graphed their solution correctly.

(4-y) (6) thanksssss

There are 35 female performers in a dance recital. The ratio of men to women is 4:7. How many men are in the dance recital?