powelljajuan72 powelljajuan72

01-06-2020
Mathematics

contestada

Concrete is made by mixing cement sand and gravel in the ratio 5:9:13 how much cement is needed to make 324 ft of concrete

Respuesta :

Persona180 Persona180

01-06-2020

Answer:

156 ft

Step-by-step explanation:

5x+9x+13x=324

27x=324

x=12

13(12)=156

Answer Link

Otras preguntas

Root Mean Square Speed and Graham's Laws- A certain gas diffuses 2.5 times faster than CO2. What is the molecular mass of the gas? - A certain gas diffuses 1.7

PLS HELP ME WITH THIS QUESTIONNN

What caused the economic panic’s in the 1800sn

The number of calories your body burns while you're resting is called _____. A. BMI (Body Mass Index) B. Peristalsis C. Metabolism D. BMR (Body Metabolic Rate)

help please I ain't very good at math

Use the net to find the surface area of the prism.

Please help! I have 36 coins with a total value of $2.35. The coins are 5-cent and 10-cent coins. How many 5-cent coins do I have?

can you explain how more life-forms were able to create because of cyanobacteria PLEASE HELP

Which statement is true

A group of 6 students was asked , How many hours did u watch television last week? Here are there responses:4,8,5,10,11,8 Find the median and mean number of hou