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
qaws [65]
3 years ago
11

Dave is a builder. Yesterday he made mortar mix. He used 24kg of sand and 5kg of cement. Today he needs to make the same type of

mortar mix, but he will use 36kg of sand. How much cement does he need?
Mathematics
1 answer:
polet [3.4K]3 years ago
4 0

Answer:

7.5 kg

Step-by-step explanation:

Ratio of sand to cement = 24kg : 5kg

Today he needs to make the same type of mortar mix, but he will use 36kg of sand.

Let

x = quantity of cement used

Ratio of sand to cement = 36 kg : x kg

Equate both ratios

24 kg : 5 kg = 36 kg : x kg

24/5 = 36/x

Cross product

24 * x = 5 * 36

24x = 180

x = 180/24

x = 7.5

x = quantity of cement used = 7.5 kg

You might be interested in
732,178+167-542,137=
madreJ [45]
( 732,178 + 167 ) = 899,178
899,178 - 542,137 = *357,041 that's the last result.
3 0
3 years ago
Read 2 more answers
Y=fx) = 8x<br> Find f(x) when x = 1/3<br> Enter the correct answer.
solniwko [45]

Answer:

f(3)=2\frac{2}{3}

Step-by-step explanation:

f(x)=8x\\f(3)=8(\frac{1}{3})\\f(3)=\frac{8}{3} \\f(3)=2\frac{2}{3}

Hope this helps!

4 0
3 years ago
Order the numbers from least to greatest <br> 2.26 <br> 2 2/5 <br> 26.8%<br> 2.62 <br> 271%
spayn [35]
2.26 > 2 2/5 > 2.62 > 26.8 > 271
4 0
2 years ago
Jada lives 1 3/10 miles from school. Lin lives 1/4 mile closer to school than Jada. How far does Lin live from school? Type in t
nekit [7.7K]

Answer:

Lin lives 1 1/20 miles away from school

Step-by-step explanation:

1 3/10 becomes 1 6/20

1/4 becomes 5/20

1 6/20 - 5/20

= 1 1/20

6 0
3 years ago
What 8 divided by 1 4/5
AnnZ [28]

Answer:

8 divided by 1 4/5 equals 4 4/9

5 0
3 years ago
Other questions:
  • 2. Prove that a 3x3 matrix must have at least one real eigenvalue. Is it important, as part of the proof, to find this eigenvalu
    8·1 answer
  • Find the slope of 9x=3y+5
    5·1 answer
  • PLEASE HELP!!! no crazy answers please
    7·1 answer
  • WILL MARK BRAINLIEST
    7·1 answer
  • What is the factored form of x^2y^3 -2y^3 - 2x^2 +4
    7·1 answer
  • 4•6*2 to the third power
    12·1 answer
  • What can I do to 4 4 4 4 using pemdas to make it = 44
    12·1 answer
  • Need answer for this
    13·1 answer
  • 16.437 rounded to the nearest tenths is
    5·2 answers
  • 5 cups to 8 cups MATH HELP!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!