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trapecia [35]
3 years ago
7

The difference of a number x and 4 is 3 equation

Mathematics
1 answer:
Lorico [155]3 years ago
5 0

Answer:

x-4=3

Step-by-step explanation:

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Marlo uses 252 lb of gravel to cover a garden plot of 36 ft2. clear check how many pounds of gravel does it take to cover one sq
timama [110]

7 lb will cover an area of 1 square foot, while 315 lb will cover an area of 45 square feet.

From given question,

252 lb = 36 ft²             ..........(1)

The number of pound for an area of 1 square foot is calculated as follows:

x = 1 ft²                       .......(2)

The area and the amount of gravel are illustrations of proportions.

From (1) and (2) we get an equation,

⇒ x × 36 = 252 × 1

⇒ x = 252/36

⇒ x = 7 lb

We need to find the area that could be covered with 315 lb of gravel

The area to be covered with 315 lb gravel is calculated as follows:

315 lb = y               ............(3)

From (1) and (3) we get an equation,

⇒ y × 252 = 36 × 315

⇒ y = 45 ft²

Therefore, 7 lb will cover an area of 1 square foot, while 315 lb will cover an area of 45 square feet.

Learn more about the proportions here:

brainly.com/question/13114933

#SPJ4

4 0
11 months ago
~Factorise~ : x³ + 4x<br>with the steps​
GrogVix [38]

Answer:

x (x^2+4)

Step-by-step explanation:

See the steps below:)

6 0
3 years ago
A square has an area that is less than 100m^2. What is a reasonable range for the graph of the square side?
bezimeni [28]
The area of the square is obtained by taking the square of the length of one side. Since it is said that the area of the square is less than 100 m^2, taking the square root of that where: sqrt (100) = 10, the side of that square should be less than 10 as well. Among the choices, D. 0 <y <10 (where y = length of side of square) is the correct answer.
3 0
3 years ago
Identify the factor terms by grouping: 5x3 – 4x2 + 20x – 16
jek_recluse [69]

Answer:

The answer is D

Step-by-step explanation:

All you have to do is distribute.

x^2(5x-4)+4(5x-4) =

5x^3-4x^2+20x-16

7 0
3 years ago
What is the largest integer that is below square root of 7?
Butoxors [25]

Answer:

2

Step-by-step explanation:

Thats your answerrrrrr

7 0
2 years ago
Read 2 more answers
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