Top answers

Talil is going to make some concrete mix. He needs to mix cement, sand and gravel (1: 3:5) by weight. Talil wants to make 180 kg of concrete mix. He has 15 kg of cement, 85 kg of sand, 100 kg of gravel. Does he have enough to make the concrete?

In order to answer this question you need to find out how much cement, sand and gravel is needed to make 180kg of concrete mix. To do this you must find out how many parts the concrete mix ratio is made up (...
KM
Answered by Katie M. • Maths tutor
34791 Views

Explain the Conservative philosophy of Human Imperfection. How has it influenced other Core Values? (15)

Conservatives largely have a very negative view on human nature believing, according to O’Sullivan, that they are imperfect and imperfectable in three distinct ways. Firstly they argue that human beings are ...
AE
Answered by Alex E. • Politics tutor
14367 Views

How do you form the perfect tense?

The perfect tense is like a sandwich. The subject pronoun, then a conjugated auxiliary verb which is either haben or sein in agreement with the subject pronoun is the at the beginning of the sentence. The re...
GD
Answered by Georgina D. • German tutor
2175 Views

The point A lies on the curve with equation y = x^(1/2). The tangent to this curve at A is parallel to the line 3y-2x=1. Find an equation of this tangent at A. (PP JUNE 2015 AQA)  

My exact explanation would depend on the students level of understanding. The following answer assumes a basic understanding of differentiation and equations of lines; a) Gradient of tangent is equal to grad...
SC
Answered by Sefret C. • Maths tutor
8144 Views

Simon's car has run out of fuel. He must push his car 5 metres to the petrol pump, using a force of 200N. How much work does Simon do?

This question asks students to recall the equation Work done = Force x Distance. In this question, students must multiply 200 by 5, with the answer being 1000 Joules. It is important that the students rememb...
JW
Answered by James W. • Physics tutor
3348 Views