College

We appreciate your visit to At a construction site cement sand and gravel are used to make concrete The ratio of cement to sand to gravel is 1 2 5. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

At a construction site, cement, sand, and gravel are used to make concrete. The ratio of cement to sand to gravel is 1:2.5:3.7. If a 150-lb bag of sand is used, how much cement and gravel must be used?

Answer :

The cement and gravel must be used in construction is 60 and 80.

What is the ratio of two quantities?

Suppose that we've got two quantities with measurements as 'a' and 'b'

Then, their ratio(ratio of a to b) a:b

or [tex]\dfrac{a}{b}[/tex]

We usually cancel out the common factors from both the numerator and the denominator of the fraction we obtained. Numerator is the upper quantity in the fraction and denominator is the lower quantity in the fraction).

Suppose that we've got a = 6, and b= 4, then:

[tex]a:b = 6:2 = \dfrac{6}{2} = \dfrac{2 \times 3}{2 \times 1} = \dfrac{3}{1} = 3\\or\\a : b = 3 : 1 = 3/1 = 3[/tex]

Remember that the ratio should always be taken of quantities with same unit of measurement. Also, ratio is a unitless(no units) quantity.

Given that;

Ratio of cement:sand:gravel= 1:2.5:3.7

The weight of sand bag 150lb.

Let & be the proportion of cement in a mixture. The ratio of cement to sand is given as 1 : 2.5. With a 150-lb sand, then the proportion of cement is given by

1/2.5 = x/150

150=2.5x

x=150/2.5

x=1500/25

x=60

y= 80

Therefore, by the given ratio answer will be 60 and 80.

Learn more about ratio here:

brainly.com/question/186659

#SPJ9

Thanks for taking the time to read At a construction site cement sand and gravel are used to make concrete The ratio of cement to sand to gravel is 1 2 5. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada