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
ozzi
3 years ago
7

1

Mathematics
1 answer:
Lena [83]3 years ago
4 0

Answer:

7.5kg

Step-by-step explanation:

Given that:

Monday:

Mass of sand = 24 kg

Mass of cement = 5 kg

Tuesday :

Mass of sand = 36 kg

Let mass of cement = c

Mass of cement required to make the same type of mortar mix

Mass of Sand = mass of cement

24kg = 5kg

36kg = c

By cross multiplication :

24 * c = 5 * 36

24c = 180

Divide both sides by 24

c = 180 / 24

c = 7.5 kg

Hence mass of cement required is 7.5 kg

You might be interested in
The Temperature at 12 noon was 14° C above zero. If it decreases at the
iogann1982 [59]

Answer:

-16

Step-by-step explanation:

you just subtract 2 each hour

5 0
3 years ago
Use the distributive property to evaluate each expression <br> 4(8-7), 4(x-6y), 6(5-q), (d+2)(-7)
Whitepunk [10]

Answer:

Rewrite the expression 10(15 – 6) using the distributive property of subtraction.

A) 10(6) – 10(15)

B) 10(9)

C) 10(6 –15)

D) 10(15) – 10(6)

Show/Hide Answer

A) 10(6) – 10(15)

Incorrect. Here a greater number would be subtracted from a lesser number, and the answer would not be a whole number. The correct answer is 10(15) – 10(6).

B) 10(9)

Incorrect. The numbers in parentheses were subtracted before the number 10 could be distributed. The correct answer is 10(15) – 10(6).

C) 10(6 –15)

Incorrect. You probably used the commutative law instead of the distributive property. The correct answer is 10(15) – 10(6).

D) 10(15) – 10(6)

Correct. The 10 is correctly distributed so that it is used to multiply the 15 and the 6 separately.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 15 hours. Together the
posledela
Let's call x1: The rate per hour of the number one mechanic. X2: The rate per hour of mechanic number two. The first thing you should do is identify the system of equations that best describes the problem. In this case it is a system of 2 equations with two unknowns which when solved gives a total of x1 = 85 $ / h and x2 = 50 $ / h. Attached solution.

5 0
3 years ago
42 = 7 ( x + 5 ) solve for x
Olegator [25]

Answer:

x = 1

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
-2x2 - x + 7 +x2 +4x-5
Arada [10]

Answer:

Need more?

Step-by-step explanation:

-x^2 + 3x + 2

Is this the answer?

6 0
3 years ago
Other questions:
  • Please helpppp what is the solution to this: 8 &lt; 3x - 1 &lt; 17
    5·2 answers
  • Help pls <br> 2y - 3.5 = 6.5
    12·1 answer
  • What is the answer to this?
    14·1 answer
  • You put $500 in your bank account. With an interest rate of 5%, how long will it take the account to reach $600?
    6·2 answers
  • The sum of x,y and z is 952. if z is 40% less than the sum of x,y, then what is the value of z?
    13·1 answer
  • Eva wanted to fill bags with 3/4 pounds of trail mix.she started with 11 3/8 pounds but ate 1/8 pound before she started filling
    8·2 answers
  • Korra is carrying a bag of books that weighs 40 pounds. After picking up some books at school, the weight has increased by
    8·1 answer
  • Substitute the expression for y into x-2y=1 and solve the equation for x. <br><br>X=​
    14·2 answers
  • Cole threw 50 darts. Here are his results Orange 29, Green 15, Blue 5, and Red 1 Calculate the experimental probability for each
    11·1 answer
  • The local newspaper has letters to the editor from 40 people. If this number represents 2​% of all of the​ newspaper's readers,
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!