1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Charra [1.4K]
3 years ago
14

Bob the builder is making 480 kg of concrete mix.

Mathematics
1 answer:
hoa [83]3 years ago
8 0

The ratio given for cement to sand to gravel is 1 : 3 : 4, and all these make concrete.

Add all the numbers in the ratio:

1+3+4=8

Divide the amount of concrete by this number:

480\text{ kg} \div8=60\text{ kg}

This means that each unit in the ratio represents 60 kg when there is a total of 480 kg of concrete. Now let's look at the given ratio again:

1:3:4

The middle number, 3, represents the amount of sand. Multiply this with 60 kg to get the amount of sand needed.

3 \times 60 \text{ kg} = 180 \text{ kg}

180 kilograms of sand are needed. Let me know if you need any clarifications, thanks! (◕‿◕)

~ Padoru

You might be interested in
Which decribes how you beed to pay a charged card bill
dusya [7]
That depends. what are the answer choices?
5 0
3 years ago
If the congruent angles of an isosceles triangle each measure 41°, what is the measure of
kotykmax [81]

Answer:

The third angle is equal to 98 degrees.

Step-by-step explanation:

All the angles add up to 180.

180 - (41 + 41) = 98

6 0
3 years ago
Are rectangular garden has a perimeter of 280 feet the north side of the garden is 90 feet what is the length of the inside of t
attashe74 [19]

The length of the inside of the garden is<u> 50 feet.</u>

What is perimeter ?

A perimeter is a closed path that covers, surrounds, or outlines a two-dimensional shape or length. The circumference of a circle or an ellipse is its perimeter.

There are various practical applications for calculating the perimeter. A calculated perimeter is the length of fencing needed to completely encircle a yard or garden. The perimeter (circumference) of a wheel/circle describes how far it will roll in one revolution. Similarly, the amount of string wrapped around a spool is proportional to the spool's perimeter; if the string length were correct, it would equal the perimeter.

Given :

The rectangular garden has a perimeter of 280 feet

breadth = 90 feet

Let the length be x.

Therefore according to the question,

2( 90 + x ) = 280

=> 90+ x = 140

=> x = 50

To learn more about perimeter click on the link below:

brainly.com/question/397857

#SPJ10

6 0
2 years ago
PLEASE HELP ME!! THANK YOU!!
Alik [6]

Answer:

y \leq 4,

y ∈ [-∞, 4]

Step-by-step explanation:

Remember, the range of the function is all possible output values or y values.

As per the graph, it appears that the output, the y value, is less than or equal to 4. Hence:

y \leq 4

or

y ∈ [-∞, 4]

is the range, both are the same, they are just different ways of writing it.

6 0
3 years ago
If the measure of angle 1= (6x+25) and the measure of angle 4= (10x-11) find the measure of angle 1
aleksandr82 [10.1K]

Answer:

125°,since when i construct the triangle and measure it it is giving 125°

4 0
3 years ago
Other questions:
  • I NEED HELP PLEASE!!!!!!!!!! Solve the problem. Adam wants to buy a video game system that costs $100.00. He has $28.35 in one p
    7·2 answers
  • Which notation is equivalent to the inequality -3 &lt; x ≤ 7?
    13·1 answer
  • Why is 25 a composite number?
    8·2 answers
  • Points B, D, and F are midpoints of the sides of Angle ACE. EC = 39 and DF = 16. Find AC. The diagram is not to scale.
    9·2 answers
  • The volume of a cone is given by v = πr2h/3, where r is the radius of the base and h is the height. assume the radius is 7 cm, m
    9·1 answer
  • What is the value for that equation
    6·1 answer
  • Daily demand for a product is 50 units, with a standard deviation of 30 units. The review period is 5 days and the lead time is
    12·1 answer
  • What is 4.0 x 10 by the 2nd power
    14·1 answer
  • Answer this pls <br> thanks
    6·2 answers
  • The price of gas on Wednesday was 52.03/gallon. On Friday, the price of gas was $2.26. What is the percent change in the price o
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!